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BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!

 
phoomp

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03/02/2013 07:55 PM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
we can only presume that, even as we speak, Russia and the U.S.
are frantically working behind the scenes to launch a space probe with the 50 megaton Tzar Bomba onboard, to intercept C/2013 A1,
and blast it out of the sky before it hits Mars.
 Quoting: Anonymous Coward 1545225


Why?


I'm a n00b to this.....seriously why?

Are they afraid debris from the impact can wind up in Earth's orbit?
 Quoting: FatalW1shes


my theory is that this MASS, moving at 120,000 miles per hour,
will be enough to split Mars into pieces, just like a
water melon hitting a brick wall. and, that the pieces
will fly all over the place leaving that whole region with *no more Mars*,
and that the loss of Mars as a planet will catastrophically
disrupt our Earth's orbit, causing an ELE event and TEOTWAWKI, and probably end up making the Earth a moon of Venus.
 Quoting: Suzy Creamcheese

That's not a theory. Without some supporting arguments, such as some validated/validatable explanation of Mars' breaking point, what you have here is nothing more than fiction.

In your watermelon vs. brick wall scenario, it's far more likely that Mars is the brick wall and the asteroid is the watermelon.

Last Edited by phoomp on 03/02/2013 07:57 PM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
popcorn

popcorn
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
The core of the comet will be moving 56 kilometers per sec when it smashes into Mars. The explosion it creates will be equal to 40 BILLION 500kt nuclear bombs(avg US and Russ arsenal weapon) going off at once, or 20 billion megatons of TNT, or 1.33 trillion Hiroshima bombs, or 1.3 billion Castle Bravo explosions. Its enough to kill all life on the planet if any were living there.

Astronomers predict a large-scale disaster on the Red Planet in October 2014, when a comet may ram into Mars, creating a 500-kilometer crater, the website of the Russian observatory ISON-NM said.
[link to english.pravda.ru]


comet core 30 miles across
collision speed 35 miles per second (126,000 miles per hour)

It may make Mars temporarily as bright as the sun. The crater left behind will be 500 kilometers across. A lot of rock will be ejected into space and become stray asteroids. This will be an epic event.
 Quoting: Dr. Ho Doan 34464973


Humans make up your minds. Forty plus years before you were crying about Mars' core is not moving, its atmosphere is too thin and the polar caps has all the frozen water or permafrost. Anyways, Mars is farther from the sun and it will cool down faster. Get a grip!
Revelator Stargate
The Stargate Is In Orion

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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Dr. Astro. Good work. Not sure if you have mentioned this before but if this Comet hits Mars, and creates fragments leaving its orbit, would these Mars fragments (meteors), potentially impact Earth? How long would it possibly take if a large couple of fragments break off of Mars, and head to Earth? Is this possible? Thanks
3ewewg
phoomp

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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Dr. Astro. Good work. Not sure if you have mentioned this before but if this Comet hits Mars, and creates fragments leaving its orbit, would these Mars fragments (meteors), potentially impact Earth? How long would it possibly take if a large couple of fragments break off of Mars, and head to Earth? Is this possible? Thanks
 Quoting: Revelator Stargate

Think of how difficult it is for humans to send objects to Mars. You can't just throw something out there and expect it to head straight to the nearest planet.

At their nearest point, Mars and Earth are 54.6 million kilometres apart. At their farthest point, 401 million kilometres. The two planets sit in two completely different orbits moving at different speeds. Anything headed toward Earth's orbit would be ultimately headed to the Sun, rather than a bee-line for Earth, and faces as much chance of meeting up with Earth as it crosses our orbit as any other asteroid or comet out there.

And, that's IF anything large gets flung out with enough velocity that it's actually able to escape Mars' gravitational pull (again, think about how difficult it is for humans to actually get stuff off our planet).

Sure, evidence tells us that pieces of Mars have made it here in the past, and some pieces from a Martian-Asteroid impact would probably make it here over time, but the odds are that it would take a VERY long time. Space is very big.
Revelator Stargate
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Dr. Astro. Good work. Not sure if you have mentioned this before but if this Comet hits Mars, and creates fragments leaving its orbit, would these Mars fragments (meteors), potentially impact Earth? How long would it possibly take if a large couple of fragments break off of Mars, and head to Earth? Is this possible? Thanks
 Quoting: Revelator Stargate

Think of how difficult it is for humans to send objects to Mars. You can't just throw something out there and expect it to head straight to the nearest planet.

At their nearest point, Mars and Earth are 54.6 million kilometres apart. At their farthest point, 401 million kilometres. The two planets sit in two completely different orbits moving at different speeds. Anything headed toward Earth's orbit would be ultimately headed to the Sun, rather than a bee-line for Earth, and faces as much chance of meeting up with Earth as it crosses our orbit as any other asteroid or comet out there.

And, that's IF anything large gets flung out with enough velocity that it's actually able to escape Mars' gravitational pull (again, think about how difficult it is for humans to actually get stuff off our planet).

Sure, evidence tells us that pieces of Mars have made it here in the past, and some pieces from a Martian-Asteroid impact would probably make it here over time, but the odds are that it would take a VERY long time. Space is very big.
 Quoting: phoomp


Um I think you are quite wrong on that. I think it would only take maybe 6 months tops for any Mars ejecta to reach Earth in the form of meteorites
3ewewg
phoomp

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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Dr. Astro. Good work. Not sure if you have mentioned this before but if this Comet hits Mars, and creates fragments leaving its orbit, would these Mars fragments (meteors), potentially impact Earth? How long would it possibly take if a large couple of fragments break off of Mars, and head to Earth? Is this possible? Thanks
 Quoting: Revelator Stargate

Think of how difficult it is for humans to send objects to Mars. You can't just throw something out there and expect it to head straight to the nearest planet.

At their nearest point, Mars and Earth are 54.6 million kilometres apart. At their farthest point, 401 million kilometres. The two planets sit in two completely different orbits moving at different speeds. Anything headed toward Earth's orbit would be ultimately headed to the Sun, rather than a bee-line for Earth, and faces as much chance of meeting up with Earth as it crosses our orbit as any other asteroid or comet out there.

And, that's IF anything large gets flung out with enough velocity that it's actually able to escape Mars' gravitational pull (again, think about how difficult it is for humans to actually get stuff off our planet).

Sure, evidence tells us that pieces of Mars have made it here in the past, and some pieces from a Martian-Asteroid impact would probably make it here over time, but the odds are that it would take a VERY long time. Space is very big.
 Quoting: phoomp

Um I think you are quite wrong on that. I think it would only take maybe 6 months tops for any Mars ejecta to reach Earth in the form of meteorites
 Quoting: Revelator Stargate

Based on what? Do you believe, out of all the directions that debris could travel, that it will all somehow be making a beeline for Earth?

The reason why I think it would take a very long time is because it is very unlikely that anything ejected from the surface due to an impact will be headed straight for Earth. More likely, some pieces will eventually wander their way over to Earths orbit where we'll eventually run into them.

Last Edited by phoomp on 03/03/2013 12:35 AM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Dr. Astro. Good work. Not sure if you have mentioned this before but if this Comet hits Mars, and creates fragments leaving its orbit, would these Mars fragments (meteors), potentially impact Earth? How long would it possibly take if a large couple of fragments break off of Mars, and head to Earth? Is this possible? Thanks
 Quoting: Revelator Stargate

Think of how difficult it is for humans to send objects to Mars. You can't just throw something out there and expect it to head straight to the nearest planet.

At their nearest point, Mars and Earth are 54.6 million kilometres apart. At their farthest point, 401 million kilometres. The two planets sit in two completely different orbits moving at different speeds. Anything headed toward Earth's orbit would be ultimately headed to the Sun, rather than a bee-line for Earth, and faces as much chance of meeting up with Earth as it crosses our orbit as any other asteroid or comet out there.

And, that's IF anything large gets flung out with enough velocity that it's actually able to escape Mars' gravitational pull (again, think about how difficult it is for humans to actually get stuff off our planet).

Sure, evidence tells us that pieces of Mars have made it here in the past, and some pieces from a Martian-Asteroid impact would probably make it here over time, but the odds are that it would take a VERY long time. Space is very big.
 Quoting: phoomp


well, escape velocity from Earth is only 25,000 mile per hour, and Comet Siding Spring will be traveling at 120,000 miles per hour: so, you can imagine that a whole lot
of Mars surface will be traveling in the opposite direction
(ejecta moving at more than the escape velocity for Mars) from the incoming mass smashing into the surface.
 Quoting: Suzy Creamcheese

You're doing an awful lot of "imagining" in your "theories". How about a little math?

Also, since the asteroid will be travelling from the outer solar system, and since you believe that ejecta will be launched in the opposite direction of the asteroids direction, isn't it most likely that the ejecta will be headed back to the outer solar system, under your "theory"?
Revelator Stargate
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Dr. Astro. Good work. Not sure if you have mentioned this before but if this Comet hits Mars, and creates fragments leaving its orbit, would these Mars fragments (meteors), potentially impact Earth? How long would it possibly take if a large couple of fragments break off of Mars, and head to Earth? Is this possible? Thanks
 Quoting: Revelator Stargate

Think of how difficult it is for humans to send objects to Mars. You can't just throw something out there and expect it to head straight to the nearest planet.

At their nearest point, Mars and Earth are 54.6 million kilometres apart. At their farthest point, 401 million kilometres. The two planets sit in two completely different orbits moving at different speeds. Anything headed toward Earth's orbit would be ultimately headed to the Sun, rather than a bee-line for Earth, and faces as much chance of meeting up with Earth as it crosses our orbit as any other asteroid or comet out there.

And, that's IF anything large gets flung out with enough velocity that it's actually able to escape Mars' gravitational pull (again, think about how difficult it is for humans to actually get stuff off our planet).

Sure, evidence tells us that pieces of Mars have made it here in the past, and some pieces from a Martian-Asteroid impact would probably make it here over time, but the odds are that it would take a VERY long time. Space is very big.
 Quoting: phoomp

Um I think you are quite wrong on that. I think it would only take maybe 6 months tops for any Mars ejecta to reach Earth in the form of meteorites
 Quoting: Revelator Stargate

Based on what? Do you believe, out of all the directions that debris could travel, that it will all somehow be making a beeline for Earth?
 Quoting: phoomp


Good point. Maybe a possibility. Who knows. We shall find out soon. :)
3ewewg
phoomp

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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
...

Think of how difficult it is for humans to send objects to Mars. You can't just throw something out there and expect it to head straight to the nearest planet.

At their nearest point, Mars and Earth are 54.6 million kilometres apart. At their farthest point, 401 million kilometres. The two planets sit in two completely different orbits moving at different speeds. Anything headed toward Earth's orbit would be ultimately headed to the Sun, rather than a bee-line for Earth, and faces as much chance of meeting up with Earth as it crosses our orbit as any other asteroid or comet out there.

And, that's IF anything large gets flung out with enough velocity that it's actually able to escape Mars' gravitational pull (again, think about how difficult it is for humans to actually get stuff off our planet).

Sure, evidence tells us that pieces of Mars have made it here in the past, and some pieces from a Martian-Asteroid impact would probably make it here over time, but the odds are that it would take a VERY long time. Space is very big.
 Quoting: phoomp

Um I think you are quite wrong on that. I think it would only take maybe 6 months tops for any Mars ejecta to reach Earth in the form of meteorites
 Quoting: Revelator Stargate

Based on what? Do you believe, out of all the directions that debris could travel, that it will all somehow be making a beeline for Earth?
 Quoting: phoomp


Good point. Maybe a possibility. Who knows. We shall find out soon. :)
 Quoting: Revelator Stargate

Indeed.

The reason why it would likely take a very long time is because it is very unlikely that anything ejected from the surface due to an impact will be headed straight for Earth. More likely, some pieces will eventually wander their way over to Earths orbit where we'll eventually run into them.

Last Edited by phoomp on 03/03/2013 12:40 AM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Dr. Astro. Good work. Not sure if you have mentioned this before but if this Comet hits Mars, and creates fragments leaving its orbit, would these Mars fragments (meteors), potentially impact Earth? How long would it possibly take if a large couple of fragments break off of Mars, and head to Earth? Is this possible? Thanks
 Quoting: Revelator Stargate

Think of how difficult it is for humans to send objects to Mars. You can't just throw something out there and expect it to head straight to the nearest planet.

At their nearest point, Mars and Earth are 54.6 million kilometres apart. At their farthest point, 401 million kilometres. The two planets sit in two completely different orbits moving at different speeds. Anything headed toward Earth's orbit would be ultimately headed to the Sun, rather than a bee-line for Earth, and faces as much chance of meeting up with Earth as it crosses our orbit as any other asteroid or comet out there.

And, that's IF anything large gets flung out with enough velocity that it's actually able to escape Mars' gravitational pull (again, think about how difficult it is for humans to actually get stuff off our planet).

Sure, evidence tells us that pieces of Mars have made it here in the past, and some pieces from a Martian-Asteroid impact would probably make it here over time, but the odds are that it would take a VERY long time. Space is very big.
 Quoting: phoomp


well, escape velocity from Earth is only 25,000 mile per hour, and Comet Siding Spring will be traveling at 120,000 miles per hour: so, you can imagine that a whole lot
of Mars surface will be traveling in the opposite direction
(ejecta moving at more than the escape velocity for Mars) from the incoming mass smashing into the surface.
 Quoting: Suzy Creamcheese

You're doing an awful lot of "imagining" in your "theories". How about a little math?

Also, since the asteroid will be travelling from the outer solar system, and since you believe that ejecta will be launched in the opposite direction of the asteroids direction, isn't it most likely that the ejecta will be headed back to the outer solar system, under your "theory"?
 Quoting: phoomp


well, the rules for our ejecta, as the Comet is striking
the surface of Mars are governed by Newtons Third Law of
Motion (action and equal and opposite reaction).

and, according to Newton's First Law of Motion: a body in motion will stay in that motion until or unless it is
acted upon by another body.
so, in terms of our "ejecta", yes, once the ejecta breaks
free of Mars gravity it will keep going in the same direction
with the very same constant velocity (until it is hit
by some asteroid or it travels close to the gravity of a mass planet)
phoomp

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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
...

Think of how difficult it is for humans to send objects to Mars. You can't just throw something out there and expect it to head straight to the nearest planet.

At their nearest point, Mars and Earth are 54.6 million kilometres apart. At their farthest point, 401 million kilometres. The two planets sit in two completely different orbits moving at different speeds. Anything headed toward Earth's orbit would be ultimately headed to the Sun, rather than a bee-line for Earth, and faces as much chance of meeting up with Earth as it crosses our orbit as any other asteroid or comet out there.

And, that's IF anything large gets flung out with enough velocity that it's actually able to escape Mars' gravitational pull (again, think about how difficult it is for humans to actually get stuff off our planet).

Sure, evidence tells us that pieces of Mars have made it here in the past, and some pieces from a Martian-Asteroid impact would probably make it here over time, but the odds are that it would take a VERY long time. Space is very big.
 Quoting: phoomp


well, escape velocity from Earth is only 25,000 mile per hour, and Comet Siding Spring will be traveling at 120,000 miles per hour: so, you can imagine that a whole lot
of Mars surface will be traveling in the opposite direction
(ejecta moving at more than the escape velocity for Mars) from the incoming mass smashing into the surface.
 Quoting: Suzy Creamcheese

You're doing an awful lot of "imagining" in your "theories". How about a little math?

Also, since the asteroid will be travelling from the outer solar system, and since you believe that ejecta will be launched in the opposite direction of the asteroids direction, isn't it most likely that the ejecta will be headed back to the outer solar system, under your "theory"?
 Quoting: phoomp


well, the rules for our ejecta, as the Comet is striking
the surface of Mars are governed by Newtons Third Law of
Motion (action and equal and opposite reaction).

and, according to Newton's First Law of Motion: a body in motion will stay in that motion until or unless it is
acted upon by another body.
so, in terms of our "ejecta", yes, once the ejecta breaks
free of Mars gravity it will keep going in the same direction
with the very same constant velocity (until it is hit
by some asteroid or it travels close to the gravity of a mass planet)
 Quoting: Anonymous Coward 1545225

That's not completely accurate. A significant portion of the asteroids motion-energy will be converted into heat-energy on impact. As a result, debris ejected from the Martian surface will not be travelling away with the same velocity that the asteroid arrived with (think about a Newton's cradle, which slows down because each ball impact results in a loss of inertia as motion-energy is converted into heat-energy).
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
...


well, escape velocity from Earth is only 25,000 mile per hour, and Comet Siding Spring will be traveling at 120,000 miles per hour: so, you can imagine that a whole lot
of Mars surface will be traveling in the opposite direction
(ejecta moving at more than the escape velocity for Mars) from the incoming mass smashing into the surface.
 Quoting: Suzy Creamcheese

You're doing an awful lot of "imagining" in your "theories". How about a little math?

Also, since the asteroid will be travelling from the outer solar system, and since you believe that ejecta will be launched in the opposite direction of the asteroids direction, isn't it most likely that the ejecta will be headed back to the outer solar system, under your "theory"?
 Quoting: phoomp


well, the rules for our ejecta, as the Comet is striking
the surface of Mars are governed by Newtons Third Law of
Motion (action and equal and opposite reaction).

and, according to Newton's First Law of Motion: a body in motion will stay in that motion until or unless it is
acted upon by another body.
so, in terms of our "ejecta", yes, once the ejecta breaks
free of Mars gravity it will keep going in the same direction
with the very same constant velocity (until it is hit
by some asteroid or it travels close to the gravity of a mass planet)
 Quoting: Anonymous Coward 1545225

That's not completely accurate. A significant portion of the asteroids motion-energy will be converted into heat-energy on impact. As a result, debris ejected from the Martian surface will not be travelling away with the same velocity that the asteroid arrived with (think about a Newton's cradle, which slows down because each ball impact results in a loss of inertia as motion-energy is converted into heat-energy).
 Quoting: phoomp


fair enough. but at 120,000 miles per hour impact speed,
it think it's fair to presume that a whole lot of the
ejecta will reach Mars escape velocity.
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
bump
phoomp

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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
...

You're doing an awful lot of "imagining" in your "theories". How about a little math?

Also, since the asteroid will be travelling from the outer solar system, and since you believe that ejecta will be launched in the opposite direction of the asteroids direction, isn't it most likely that the ejecta will be headed back to the outer solar system, under your "theory"?
 Quoting: phoomp


well, the rules for our ejecta, as the Comet is striking
the surface of Mars are governed by Newtons Third Law of
Motion (action and equal and opposite reaction).

and, according to Newton's First Law of Motion: a body in motion will stay in that motion until or unless it is
acted upon by another body.
so, in terms of our "ejecta", yes, once the ejecta breaks
free of Mars gravity it will keep going in the same direction
with the very same constant velocity (until it is hit
by some asteroid or it travels close to the gravity of a mass planet)
 Quoting: Anonymous Coward 1545225

That's not completely accurate. A significant portion of the asteroids motion-energy will be converted into heat-energy on impact. As a result, debris ejected from the Martian surface will not be travelling away with the same velocity that the asteroid arrived with (think about a Newton's cradle, which slows down because each ball impact results in a loss of inertia as motion-energy is converted into heat-energy).
 Quoting: phoomp


fair enough. but at 120,000 miles per hour impact speed,
it think it's fair to presume that a whole lot of the
ejecta will reach Mars escape velocity.
 Quoting: Anonymous Coward 1545225

Perhaps. It really depends a lot on the composition of Mars and the comet. This is not much different from throwing an object at the ground (albeit on a somewhat different scale). (i.e. debris behaviour will be different if the object is a rock, a sandstone or a snowball)

Yes, there will likely be debris ejected into space from the impact. What direction will the debris be headed will depend on the direction of the impact and gravitational forces. We know that:
- Siding Spring is coming from the outer solar system
- Siding Spring is currently BELOW the planetary plane
- Siding Spring orbit is in the opposite direction of the planets
- On Oct 14, 2014, Earth in it's orbit will be ahead of Mars, 1/4 of the way around the Sun from Mars and travelling away from the point of impact at a speed of 66,000 mph.

To my untrained eye, this suggests that debris from the impact will most likely be directed into the path of Mars' orbit or back out to the Outer Solar System. Some will likely decay it's way into Inner Solar System orbits, but that'll likely take a long time.

Here's my layman's sketch of my of what I've read about Siding Spring's path overlayed on top of the planetary positions for October 14, 2014:
[link to www.dropbox.com (secure)]

Last Edited by phoomp on 03/03/2013 11:33 AM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Dr. Astro. Good work. Not sure if you have mentioned this before but if this Comet hits Mars, and creates fragments leaving its orbit, would these Mars fragments (meteors), potentially impact Earth? How long would it possibly take if a large couple of fragments break off of Mars, and head to Earth? Is this possible? Thanks
 Quoting: Revelator Stargate

Think of how difficult it is for humans to send objects to Mars. You can't just throw something out there and expect it to head straight to the nearest planet.

At their nearest point, Mars and Earth are 54.6 million kilometres apart. At their farthest point, 401 million kilometres. The two planets sit in two completely different orbits moving at different speeds. Anything headed toward Earth's orbit would be ultimately headed to the Sun, rather than a bee-line for Earth, and faces as much chance of meeting up with Earth as it crosses our orbit as any other asteroid or comet out there.

And, that's IF anything large gets flung out with enough velocity that it's actually able to escape Mars' gravitational pull (again, think about how difficult it is for humans to actually get stuff off our planet).

Sure, evidence tells us that pieces of Mars have made it here in the past, and some pieces from a Martian-Asteroid impact would probably make it here over time, but the odds are that it would take a VERY long time. Space is very big.
 Quoting: phoomp


well, escape velocity from Earth is only 25,000 mile per hour, and Comet Siding Spring will be traveling at 120,000 miles per hour: so, you can imagine that a whole lot
of Mars surface will be traveling in the opposite direction
(ejecta moving at more than the escape velocity for Mars) from the incoming mass smashing into the surface.
 Quoting: Suzy Creamcheese

You're doing an awful lot of "imagining" in your "theories". How about a little math?

Also, since the asteroid will be travelling from the outer solar system, and since you believe that ejecta will be launched in the opposite direction of the asteroids direction, isn't it most likely that the ejecta will be headed back to the outer solar system, under your "theory"?
 Quoting: phoomp

This sudden new cosmic situation is in a state of flux and is constantly changing. Thus it is perfectly understandable for a reader to use his/her own imagination as to what it is likely to happen in Oct 2014. There is also the possibility of new variables entering the astronomical equation between now and Oct 2014. Why, it is less than one year ago we first learned about these two comets and less than 2 months ago about the Martian-bound one!
As for the maths, even that is changing by the day when new info comes in.
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
This sudden new cosmic situation is in a state of flux and is constantly changing. Thus it is perfectly understandable for a reader to use his/her own imagination as to what it is likely to happen in Oct 2014. There is also the possibility of new variables entering the astronomical equation between now and Oct 2014. Why, it is less than one year ago we first learned about these two comets and less than 2 months ago about the Martian-bound one!
As for the maths, even that is changing by the day when new info comes in.
 Quoting: mclinking 34631684

Convenient.
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Here's my layman's sketch of my of what I've read about Siding Spring's path overlayed on top of the planetary positions for October 14, 2014:
[link to www.dropbox.com (secure)]
 Quoting: phoomp


very nice. thank you.
yes, it is clear that all of the ejecta will be directed
directly away from the Earth, and go way way out to the
outer planets.

which leaves the only remaining threat: when Mars is
broken into pieces, the gravitational influence of "Mars"
will be gone, and the Earth will be sucked into orbit around Venus.
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Not confirmed yet. Hope it will be soon.


And lol at those who think it will destroy mars.
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03/03/2013 12:42 PM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Here's my layman's sketch of my of what I've read about Siding Spring's path overlayed on top of the planetary positions for October 14, 2014:
[link to www.dropbox.com (secure)]
 Quoting: phoomp


very nice. thank you.
yes, it is clear that all of the ejecta will be directed
directly away from the Earth, and go way way out to the
outer planets.
 Quoting: Anonymous Coward 1545225

Very welcome.


which leaves the only remaining threat: when Mars is
broken into pieces, the gravitational influence of "Mars"
will be gone, and the Earth will be sucked into orbit around Venus.
 Quoting: Anonymous Coward 1545225

Diameter of Siding Spring Comet: 10km - 50km
Diameter of Mars: 6,778km

Even with a potential impact strength of 2×10¹º megatonnes, it seems unlikely that Mars is so brittle that something 0.7% of it's size could shatter it. For a layman's scale model test, shoot a bullet at a boulder and see what happens.

Last Edited by phoomp on 03/03/2013 12:46 PM
Anonymous Coward
User ID: 1545225
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03/03/2013 12:56 PM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Here's my layman's sketch of my of what I've read about Siding Spring's path overlayed on top of the planetary positions for October 14, 2014:
[link to www.dropbox.com (secure)]
 Quoting: phoomp


very nice. thank you.
yes, it is clear that all of the ejecta will be directed
directly away from the Earth, and go way way out to the
outer planets.
 Quoting: Anonymous Coward 1545225

Very welcome.


which leaves the only remaining threat: when Mars is
broken into pieces, the gravitational influence of "Mars"
will be gone, and the Earth will be sucked into orbit around Venus.
 Quoting: Anonymous Coward 1545225

Diameter of Siding Spring Comet: 10km - 50km
Diameter of Mars: 6,778km

Even with a potential impact strength of 2×10¹º megatonnes, it seems unlikely that Mars is so brittle that something 0.7% of it's size could shatter it. For a layman's scale model test, shoot a bullet at a boulder and see what happens.
 Quoting: phoomp


ouch! you got me :)
Anonymous Coward
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03/03/2013 01:03 PM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
How much water is in this comet? Sounds like the makings of another Earth.
 Quoting: Chip


unknown

Its probably enough to fill a very large lake, maybe a Great Lake amount of water.
 Quoting: Dr. Ho Doan 34464973


OP. Please stop, you are only embarrassing yourself. You obviously have no knowledge of this subject.
phoomp

User ID: 34814167
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03/03/2013 01:09 PM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
Here's my layman's sketch of my of what I've read about Siding Spring's path overlayed on top of the planetary positions for October 14, 2014:
[link to www.dropbox.com (secure)]
 Quoting: phoomp


very nice. thank you.
yes, it is clear that all of the ejecta will be directed
directly away from the Earth, and go way way out to the
outer planets.
 Quoting: Anonymous Coward 1545225

Very welcome.


which leaves the only remaining threat: when Mars is
broken into pieces, the gravitational influence of "Mars"
will be gone, and the Earth will be sucked into orbit around Venus.
 Quoting: Anonymous Coward 1545225

Diameter of Siding Spring Comet: 10km - 50km
Diameter of Mars: 6,778km

Even with a potential impact strength of 2×10¹º megatonnes, it seems unlikely that Mars is so brittle that something 0.7% of it's size could shatter it. For a layman's scale model test, shoot a bullet at a boulder and see what happens.
 Quoting: phoomp


ouch! you got me :)
 Quoting: Anonymous Coward 1545225

;)

I've got another one for you. Even IF Mars were to disappear, the gravitational force it exerts on Earth is VERY minimal. Jupiter exerts more force on Earth than Mars does, and it's still just a fraction of what the Sun exerts on us. What keeps us a nice, cozy distance isn't the Outer planets holding us back; it's the speed and trajectory of our orbit around the Sun.
Resdes

User ID: 26202189
United Kingdom
03/03/2013 01:33 PM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
...


Why?


I'm a n00b to this.....seriously why?

Are they afraid debris from the impact can wind up in Earth's orbit?
 Quoting: FatalW1shes


my theory is that this MASS, moving at 120,000 miles per hour,
will be enough to split Mars into pieces, just like a
water melon hitting a brick wall. and, that the pieces
will fly all over the place leaving that whole region with *no more Mars*,
and that the loss of Mars as a planet will catastrophically
disrupt our Earth's orbit, causing an ELE event and TEOTWAWKI, and probably end up making the Earth a moon of Venus.
 Quoting: Suzy Creamcheese

First of all, it isn't nearly powerful enough to split the planet.

Second, even if it was, the gravity of all the pieces would congeal it back together again.
 Quoting: Anonymous Coward 754169


Suzy has an interesting combination of arrogance and ignorance.
 Quoting: Dr. Astro


Astro, you know your stuff, with some much going on this year in space, what telescope would you recommed with a budget of around £250, $400? really would like my kids to get into this, like I did when I was younger but fell away, but I think with some amazing comets coming this year, there hasnt been a better time to get back into it?

Thanks
Dr. AstroModerator
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03/03/2013 08:32 PM

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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
...


my theory is that this MASS, moving at 120,000 miles per hour,
will be enough to split Mars into pieces, just like a
water melon hitting a brick wall. and, that the pieces
will fly all over the place leaving that whole region with *no more Mars*,
and that the loss of Mars as a planet will catastrophically
disrupt our Earth's orbit, causing an ELE event and TEOTWAWKI, and probably end up making the Earth a moon of Venus.
 Quoting: Suzy Creamcheese

First of all, it isn't nearly powerful enough to split the planet.

Second, even if it was, the gravity of all the pieces would congeal it back together again.
 Quoting: Anonymous Coward 754169


Suzy has an interesting combination of arrogance and ignorance.
 Quoting: Dr. Astro


Astro, you know your stuff, with some much going on this year in space, what telescope would you recommed with a budget of around £250, $400? really would like my kids to get into this, like I did when I was younger but fell away, but I think with some amazing comets coming this year, there hasnt been a better time to get back into it?

Thanks
 Quoting: Resdes


For $400 I would get one of these:
[link to www.telescope.com]
A good Dobsonian can provide many years of enjoyment. It's easy to use and a good tool to learn with, so great for the kids. Depending on their age it may be a bit big for them though, so if that's an issue you could always start off with something like this:
[link to www.telescope.com]

Last Edited by Dr. Astro on 03/03/2013 08:33 PM
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Resdes

User ID: 26202189
United Kingdom
03/04/2013 02:50 PM
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Re: BREAKING NEWS --- Mars to be hit by massive comet! 40 billion nuke bomb size explosion! CONFIRMED!
...

First of all, it isn't nearly powerful enough to split the planet.

Second, even if it was, the gravity of all the pieces would congeal it back together again.
 Quoting: Anonymous Coward 754169


Suzy has an interesting combination of arrogance and ignorance.
 Quoting: Dr. Astro


Astro, you know your stuff, with some much going on this year in space, what telescope would you recommed with a budget of around £250, $400? really would like my kids to get into this, like I did when I was younger but fell away, but I think with some amazing comets coming this year, there hasnt been a better time to get back into it?

Thanks
 Quoting: Resdes


For $400 I would get one of these:
[link to www.telescope.com]
A good Dobsonian can provide many years of enjoyment. It's easy to use and a good tool to learn with, so great for the kids. Depending on their age it may be a bit big for them though, so if that's an issue you could always start off with something like this:
[link to www.telescope.com]
 Quoting: Dr. Astro


they are 5 and 7, I will have a look, thank you for the advice

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