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Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"

 
Dr. AstroModerator
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02/09/2013 11:16 AM

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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
Why did this thing just inch 3000 miles closer OVERNIGHT? abomb
 Quoting: YankeeRose555


It DIDN'T.
astrobanner2
zacksavage
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02/09/2013 11:18 AM

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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
According to NASA yes. It is the biggest and closest observable asteroid in modern time.

"Nevertheless, the flyby will provide a unique opportunity for researchers to study a near-Earth object up close. Here are the facts about the safe flyby of Earth of asteroid 2012 DA14 -- a record close approach for a known object of this size. "

[link to www.nasa.gov]
 Quoting: TS66


Hey TS!! Thanks,...seems like that is big news all in itself.

hf



Z
In time we hate that which we often fear.

--- William Shakespeare
Anonymous Coward
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02/09/2013 11:20 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
According to NASA yes. It is the biggest and closest observable asteroid in modern time.

"Nevertheless, the flyby will provide a unique opportunity for researchers to study a near-Earth object up close. Here are the facts about the safe flyby of Earth of asteroid 2012 DA14 -- a record close approach for a known object of this size. "

[link to www.nasa.gov]
 Quoting: TS66


Hey TS!! Thanks,...seems like that is big news all in itself.

hf



Z
 Quoting: zacksavage


Hey Z, yes I think so too wink
Anonymous Coward
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02/09/2013 11:21 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
what sort of damage would a rock of this size do?

because 50meters is absolutely microscopic in terms of the universe
 Quoting: Skuzzlebutt



Here you go: Earth impact calculator

[link to impact.ese.ic.ac.uk]

You do the math...

But DA14 isn't a threat at all. 14,000 miles is still a big distance. The object is merely 50 m big.
 Quoting: Anonymous Coward 34004556


Or, as NASA said, twice that size (a factor of 2), meaning four times bigger in volume (pi * R ^2).
Anonymous Coward
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02/09/2013 11:23 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
what sort of damage would a rock of this size do?

because 50meters is absolutely microscopic in terms of the universe
 Quoting: Skuzzlebutt



Here you go: Earth impact calculator

[link to impact.ese.ic.ac.uk]

You do the math...

But DA14 isn't a threat at all. 14,000 miles is still a big distance. The object is merely 50 m big.
 Quoting: Anonymous Coward 34004556


Or, as NASA said, twice that size (a factor of 2), meaning four times bigger in volume (pi * R ^2).
 Quoting: Anonymous Coward 33869070


Oops, 4 * pi * radius2.
Dr. AstroModerator
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02/09/2013 11:23 AM

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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
AND YET you now claim an increase in distance from the earth of 205 miles
 Quoting: Kimpy2 20290901

No I don't. Learn what significant figures are. NASA's not saying it's 17000 miles exactly on the dot. Please tell me you're not that stupid.
Sorry, your claims don't add up. I watched your entire video this morning. Huge contradictions.
 Quoting: Kimpy2

Quit trying to confuse people. Quit trying to attack my video on false premises. People like you are why I will never stop debunking, because people like you need to be put in their place.

NASA's exact prediction of the close approach distance (note these distances are to earth's center, not the surface, subtract a mean radius of 3959 miles):
[link to ssd.jpl.nasa.gov]
Close approach between 17,194.1444 - 17,205.4341 miles. My figure falls into their close approach range, I am not in disagreement with NASA.
astrobanner2
zacksavage
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02/09/2013 11:24 AM

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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
Thanks Zack - yep stilla round 'lurking' LOL - but still involved when needed etc
Yes Alex show, that was a close one..LOL - also on coast 2 coast, jeff rense etc etc... good ol days! fond memories
 Quoting: Ambilac


Well, thanks for your insights. I most definitely agree with you.

Do you see an increase in "events" over the years?
Do you discern any patterns?


Z

Last Edited by zacksavage on 02/09/2013 11:25 AM
In time we hate that which we often fear.

--- William Shakespeare
Anonymous Coward
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02/09/2013 11:25 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
They must have underestimated its mass by quit a margin...

hiding
 Quoting: Anonymous Coward 1274009


its a paltin rock.
if it hits it will devatate a radius of 400 miles....
Kimpy2 (OP)
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02/09/2013 11:26 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
I personally appreciate the good science and the good math of our resident astronomer here.

When it comes to math, there's no arguing against specific calculations. Calculations don't lie and they are not based upon somebody's opinion. People may continue to attack Astromut but the truth of the matter is that they are attacking solid math and physics just because it doesn't line up to their opinions! Therefore if you are going to argue against Astromut, show us your math and calculations because otherwise your opinions amount to silly fantasies.

Thanks for your service Astromut!
 Quoting: Trinitarian


Your right bud, but there IS something to say for where these "specific calculations" come from, and also wether there are really even enough of these "specific calculations" to even form solid evidence, like your beloved doctor does constantly.
 Quoting: Citratox


Hear! Hear! There is huge noise (amplifying error) in mathematics, which mathematics books just cram in the back as a footnote because they don't know what else to do with it. It's called chaos, which is what exploded at NASA when they flubbed their conversions from miles to kilometers on that muy expensivo space shot. Read a great book titled Chaos by Mitchell Waldrop (there is more than one book by that title, so get Waldrop's). Listen, Einstein's math has now been disproven, and he was one schmart mensch! Yes, math failed Einstein. I do not worship the chalkboard god. Sensitive dependence on initial conditions is THE MANTRA of High Complexity Science, so face it, Astro, you cannot and do not know the initial conditions of 2012 DA-14. Your calculations and all others are approximations only...NOT certainties.
yoda
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02/09/2013 11:26 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
Wrong. We have the technology to "really" track this thing. The orbit is known. I don't give a damn what names you call me for stating it as such. I will laugh in the faces of my detractors when this asteroid passes us by EXACTLY as predicted. I will track it myself and compare where it actually went to where it was predicted to go, and when I do that and show that it followed my predictions exactly, I will count how many people admit they were totally wrong. I expect that number will probably be close to 0.
 Quoting: Dr. Astro

Ok Doc. I get where your coming from. I am simply stating that "your technology" to track this thing is just modern. This "thing" headed our way is pushing boundries id say of our current technologies.
 Quoting: Citratox

I completely disagree with that. This asteroid's orbit is very easily knowable with current technology. If I can figure it out for myself without NASA's help at all, then it's nowhere near the boundaries of our technology.
Tell me, do you know all of the absolute facts about 2012 da14's path and what it is made of and how the guts of this thing effect its "path"? No, you dont.
 Quoting: Citratox

The guts of this thing are irrelevant to its path. Objects fall at a constant rate in a given gravity well regardless of what they're made of. Basic physics.
 Quoting: Dr. Astro


Basic physics?

Is that the same basic physics that you believed happened on 9/11?
Kimpy2 (OP)
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02/09/2013 11:31 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
I personally appreciate the good science and the good math of our resident astronomer here.

When it comes to math, there's no arguing against specific calculations. Calculations don't lie and they are not based upon somebody's opinion. People may continue to attack Astromut but the truth of the matter is that they are attacking solid math and physics just because it doesn't line up to their opinions! Therefore if you are going to argue against Astromut, show us your math and calculations because otherwise your opinions amount to silly fantasies.

Thanks for your service Astromut!
 Quoting: Trinitarian


Your right bud, but there IS something to say for where these "specific calculations" come from, and also wether there are really even enough of these "specific calculations" to even form solid evidence, like your beloved doctor does constantly.
 Quoting: Citratox


Hear! Hear! There is huge noise (amplifying error) in mathematics, which mathematics books just cram in the back as a footnote because they don't know what else to do with it. It's called chaos, which is what exploded at NASA when they flubbed their conversions from miles to kilometers on that muy expensivo space shot. Read a great book titled Chaos by Mitchell Waldrop (there is more than one book by that title, so get Waldrop's). Listen, Einstein's math has now been disproven, and he was one schmart mensch! Yes, math failed Einstein. I do not worship the chalkboard god. Sensitive dependence on initial conditions is THE MANTRA of High Complexity Science, so face it, Astro, you cannot and do not know the initial conditions of 2012 DA-14. Your calculations and all others are approximations only...NOT certainties.
yoda
 Quoting: Kimpy2 20290901


CORRECTION PLEASE: Complexity by Mitchell Waldrop is the correct title. Sheesh, I was thinking about James Gleick's Chaos at the same time before typing. See? Sensitive dependence on initial conditions led to Chaos in my message! :-)
yoda
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02/09/2013 11:32 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
corkey

snot good...

Nick®
Pure Life; Get it on...
Anonymous Coward
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02/09/2013 11:34 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
it will appear over the asian area at about 20:00 GMT.
no worries.

if it explodes in the athmosphere it will have onlöy the effect of a couple hndret hiroshima bombs.
Citratox

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02/09/2013 11:38 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
Wrong. We have the technology to "really" track this thing. The orbit is known. I don't give a damn what names you call me for stating it as such. I will laugh in the faces of my detractors when this asteroid passes us by EXACTLY as predicted. I will track it myself and compare where it actually went to where it was predicted to go, and when I do that and show that it followed my predictions exactly, I will count how many people admit they were totally wrong. I expect that number will probably be close to 0.
 Quoting: Dr. Astro

Ok Doc. I get where your coming from. I am simply stating that "your technology" to track this thing is just modern. This "thing" headed our way is pushing boundries id say of our current technologies.
 Quoting: Citratox

I completely disagree with that. This asteroid's orbit is very easily knowable with current technology. If I can figure it out for myself without NASA's help at all, then it's nowhere near the boundaries of our technology.
Tell me, do you know all of the absolute facts about 2012 da14's path and what it is made of and how the guts of this thing effect its "path"? No, you dont.
 Quoting: Citratox

The guts of this thing are irrelevant to its path. Objects fall at a constant rate in a given gravity well regardless of what they're made of. Basic physics.
 Quoting: Dr. Astro


So, you give Mr. Yarkovsky no credit.
Figures..
I personally believe this should be looked into more. I also think that we live in a world where magnetics play a big part and that would mean that the guts of this thing DO matter quite a bit. Your statements are becoming irrelevant here.
I read that this comet can be the type that is made of a certain substance that has such an effect that it is sucked in my earth and becomes a sun guided missle. Something like that.
 Quoting: Citratox


Is this what you're seeking?

"Orbit Changers.

In 1902 Ivan Yarkovsky wrote that solar heating of an object in space would cause it to experience a force leading to large long term effects in the orbits of asteroids.

The Yarkovsky effect can turn many asteroids into sun guided missiles targeting earth.

Blogs.Redorbit.com/is-an-asteroid-collision-inevitable"
Quoting: Anonymous Coward 33807380
 Quoting: Kimpy2 20290901
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
as i have no time to study it myself - does anyone know where it is going to pass as in "in which countries i can see it" ?
would be good to know where it comes down if ;)
 Quoting: phoenixe



News said yesterday Australia would have the best view.
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02/09/2013 11:41 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
PIN IT, yes!bump
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02/09/2013 11:46 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
If Nasa are so great then why didn't they spot it first?
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02/09/2013 11:47 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
as i have no time to study it myself - does anyone know where it is going to pass as in "in which countries i can see it" ?
would be good to know where it comes down if ;)
 Quoting: phoenixe



News said yesterday Australia would have the best view.
 Quoting: Anonymous Coward 34011078


Eastern Europe and Australia I heard.

You would need a good telescope to see it.
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
Was enjoying this thread untill dr.astro showed up. I still think theres a chance this thing causes some disturbances at least.
 Quoting: Citratox


Yes, I tend to have that effect on false space doom.
 Quoting: Dr. Astro


Doc i know you are very popular here, and you have loads of knowledge about all things astronomy. My problem is that i think you are a stuborn know it all. (No-offence) Just the fact that you think you "know" what is going to happen all of the time. I believe that these asteroids and comets and everything out of this world is so unpredictable and the science that you use to make all of your debunking predictings is just as bogus as some of these far out claims.
 Quoting: Citratox

No, it's nothing at all like the bogus far out claims. The orbit of this asteroid is known to a precision far greater than that needed to rule out the possibility of impact. You believe they're "unpredictable" in their motion, but I know from first hand experience that they are not.
The science that you use and nasa also uses is NOT perfect and they're are still many many unknown factors that we dont even have the technology to even think about being able to "really" track this thing.
 Quoting: citratox

Wrong. We have the technology to "really" track this thing. The orbit is known. I don't give a damn what names you call me for stating it as such. I will laugh in the faces of my detractors when this asteroid passes us by EXACTLY as predicted. I will track it myself and compare where it actually went to where it was predicted to go, and when I do that and show that it followed my predictions exactly, I will count how many people admit they were totally wrong. I expect that number will probably be close to 0.
 Quoting: Dr. Astro


Dr. Astro, in your opinion have you noticed an increasing trend of near earth objects over the last 10 years? It seems that debris from the oort cloud and other very odd orbits of comets are coming into the solar system at this time. We look at the small asteroids like these or Comet ISON or the dozen or so previous sun diving comets I have personally noticed and it seems to me that we are starting to move through a more densely packed part of space.

I always wondered as comets and other objects move through space, do they pick up the magnetic orientation of it's surroundings and can they have their trajectories manipulated by magnetic fields? In my point of view learning about things like this will help us when we start to look to use asteroids and small space objects to use as solar system satellites and for mining purposes. Just a thought.
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
[link to earthsky.org]

"An illustration of the Yarkovsky effect. As sunlight (bottom) heats the rotating asteroid, parts that are exposed to the sun for longer get warmer. The warmest regions radiate the most heat. The radiation imparts a push on the asteroid, in this case in the same direction it is orbiting the sun."
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
I find myself becoming more and more affiliated with the electric universe theory.
Anonymous Coward
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02/09/2013 11:56 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
Perhaps, when the asteroid goes by, everyone who said Dr. Astro was wrong were forced to give Astro Good Karma...
Polostar
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02/09/2013 11:56 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
What if it collides with a satellite or any of the mega-ton of space debris orbiting the planet? Could that change it's trajectory to the earth?
Citratox

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02/09/2013 11:58 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
Here is some old but really good info on this specific asteroid [link to www.whatdoesitmean.com]
Anonymous Coward
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
What if it collides with a satellite or any of the mega-ton of space debris orbiting the planet? Could that change it's trajectory to the earth?
 Quoting: Polostar 33737656


I'm sorry but even though I think NASA does lie and spin certain things, they do also produce legitimate data and results. This is easily checked for validity and can be done by thousands of people across the planet. That's the one good thing about space, its verifiable. It will not hit a satellite or the surface, i'm going to just put that out there.
Anonymous Coward
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02/09/2013 11:59 AM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
Time too nuke it.
Kimpy2 (OP)
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02/09/2013 12:02 PM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
I find myself becoming more and more affiliated with the electric universe theory.
 Quoting: Anonymous Coward 33698150


Hellz yeah!
yoda
Anonymous Coward
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02/09/2013 12:03 PM
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
Where does it now say "14,000" miles? The link you provided says 28,000 kilometers which is still 17,000 miles.
 Quoting: Anonymous Coward 23834215


They don't. OP thinks CNN is an authoritative source on the close approach distance.
 Quoting: Dr. Astro


Thanks for your level head.

Some people like to scare the hell outta ya. They must get off on that shit.
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
The uncertainties in plane-of-sky position, Doppler frequency, and time delay will grow dramatically
during the approach, but even so, this object cannot impact Earth during this encounter.

[link to echo.jpl.nasa.gov]
 Quoting: --Voltaic--


Isn't possible that Earth may suck the asteroid in, given it is passing WITHIN its powerful EM field?

Who else has considered this very logical idea?
 Quoting: Anonymous Coward 34009304


You mean if its an iron asteroid?

Isn't the Earth a giant magnet?
Anonymous Coward
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Re: Asteroid approach shrank to 14,000 miles this a.m. + NASA says "Astrometry is URGENTLY Needed"
The uncertainties in plane-of-sky position, Doppler frequency, and time delay will grow dramatically
during the approach, but even so, this object cannot impact Earth during this encounter.

[link to echo.jpl.nasa.gov]
 Quoting: --Voltaic--


Isn't possible that Earth may suck the asteroid in, given it is passing WITHIN its powerful EM field?

Who else has considered this very logical idea?
 Quoting: Anonymous Coward 34009304


You mean if its an iron asteroid?

Isn't the Earth a giant magnet?
 Quoting: Anonymous Coward 34000636


It all plays a part, but the radiation emitted from the sun could easily nullify the Earths magnetic strength.

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