Godlike Productions - Discussion Forum
Users Online Now: 1,132 (Who's On?)Visitors Today: 152,578
Pageviews Today: 278,489Threads Today: 94Posts Today: 2,218
04:14 AM


Rate this Thread

Absolute BS Crap Reasonable Nice Amazing
 

Dark and dangerous asteroids spotted lurking unseen near Earth's orbit

 
Anonymous Coward
User ID: 833852
United States
03/06/2010 06:09 PM
Report Abusive Post
Report Copyright Violation
Dark and dangerous asteroids spotted lurking unseen near Earth's orbit
London, March 6

[link to news.oneindia.in]

(ANI): Reports indicate that an infrared space telescope has spotted several very dark asteroids that have been lurking unseen near Earth's orbit.

Called the Wide-Field Infrared Survey Explorer (WISE), the new NASA telescope launched on 14 December on a mission to map the entire sky at infrared wavelengths.


It began its survey in mid-January.

In its first six weeks of observations, it has discovered 16 previously unknown asteroids with orbits close to Earth's.

Of these, 55 per cent reflect less than one-tenth of the sunlight that falls on them, which makes them difficult to spot with visible-light telescopes.

One of these objects is as dark as fresh asphalt, reflecting less than 5 per cent of the light it receives.

Many of these dark asteroids have orbits that are steeply tilted relative to the plane in which all the planets and most asteroids orbit.

This means telescopes surveying for asteroids may be missing many other objects with tilted orbits, because they spend most of their time looking in this plane.

Fortunately, the new objects are bright in infrared radiation, because they absorb a lot of sunlight and heat up.

This makes them relatively easy for WISE to spot.

"It's really good at finding the darkest asteroids and comets," said mission team member Amy Mainzer of NASA's Jet Propulsion Laboratory in Pasadena, California, at the Lunar and Planetary Science Conference in Houston, Texas

WISE is expected to discover as many as 1000 near-Earth objects - but astronomers estimate that the number of unknown objects with masses great enough to cause ground damage in an impact runs into the tens of thousands.

According to Richard Binzel of the Massachusetts Institute of Technology, the dark asteroids may be former comets that have long since had all the ice vaporised from their exteriors, leaving them with inactive surfaces that no longer shed dust to produce tails.

He pointed out that many comets have very tilted orbits, and comets visited by spacecraft have been observed to have very dark surfaces. (ANI)
Anonymous Coward
User ID: 675077
United States
03/06/2010 06:16 PM
Report Abusive Post
Report Copyright Violation
Re: Dark and dangerous asteroids spotted lurking unseen near Earth's orbit
And Dr. Postman swears PX would be spotted by some random amateur astronomer by now. A amateur with a infra red telescope, like a 4 inch reflector and a snap on filter ........ waiting for that to happen.
Anonymous Coward
User ID: 748779
United States
03/06/2010 06:17 PM
Report Abusive Post
Report Copyright Violation
Re: Dark and dangerous asteroids spotted lurking unseen near Earth's orbit
scared
Ostria

User ID: 907649
Greece
03/06/2010 06:17 PM
Report Abusive Post
Report Copyright Violation
Re: Dark and dangerous asteroids spotted lurking unseen near Earth's orbit
hiding
Anonymous Coward
User ID: 908477
United States
03/06/2010 06:17 PM
Report Abusive Post
Report Copyright Violation
Re: Dark and dangerous asteroids spotted lurking unseen near Earth's orbit
Das Machine is nicht fur gefingerpoken und mittengraben. Ist easy schnappen der springenwerk, blowenfusen und poppencorken mit spitzensparken. Is nicht fur gewerken by das dummkopfen. Das rubbernecken sightseeren keepen Cotten-pickenen handen in das pockets - relaxen und Watchen Das Blinken Lights.
Anonymous Coward
User ID: 889363
United States
03/06/2010 06:18 PM
Report Abusive Post
Report Copyright Violation
Re: Dark and dangerous asteroids spotted lurking unseen near Earth's orbit
Are comets dirty snowballs?
Disaster Man

User ID: 861793
United States
03/06/2010 06:18 PM
Report Abusive Post
Report Copyright Violation
Re: Dark and dangerous asteroids spotted lurking unseen near Earth's orbit
the question is are we sure they are asteroids? or are they not telling us the truth
Marty McFly- Oh This Is heavy Doc
Doc Bown- There's that word again, heavy. Why are things so heavy in the future, is there a problem with the earth's gravitational pole??- Back To the Future

Me-Hehe, Doc you don't have any idea do you?

All in fractals friends!


Life is like a ride at an amusement park and when you go on it you think it's real cause that's how powerful our minds are.- Bill Hicks

Either get busy living, or get busy dying- Morgan Freeman (Shawshank Redemption)
Anonymous Coward
User ID: 900150
United States
03/06/2010 06:19 PM
Report Abusive Post
Report Copyright Violation
Re: Dark and dangerous asteroids spotted lurking unseen near Earth's orbit
And Dr. Postman swears PX would be spotted by some random amateur astronomer by now. A amateur with a infra red telescope, like a 4 inch reflector and a snap on filter ........ waiting for that to happen.
 Quoting: Anonymous Coward 675077

He is probably swearing a lot these days.
Anonymous Coward (OP)
User ID: 833852
United States
03/06/2010 07:02 PM
Report Abusive Post
Report Copyright Violation
Re: Dark and dangerous asteroids spotted lurking unseen near Earth's orbit
I guess when added to those orbs around the sun recently we can safely say TPTB have no idea wtf is going on really or at least thats what they make us think...
Anonymous Coward
User ID: 902253
United Kingdom
03/06/2010 08:25 PM
Report Abusive Post
Report Copyright Violation
Re: Dark and dangerous asteroids spotted lurking unseen near Earth's orbit
they lie to us all ze time.





GLP