Chance for a Tunguska Sized Impact on Mars 184
Multiple users have written to tell us of an LA Times report that an asteroid may hit Mars on January 30th. The asteroid is roughly 160 feet across, and JPL-based researchers say that it will have a 1-in-75 chance of striking Mars. Those odds are very high for this type of event, and scientists are hoping to witness an impact of a similar scope to the Tunguska disaster. From the LA Times:
"Because scientists have never observed an asteroid impact -- the closest thing being the 1994 collision of comet Shoemaker-Levy with Jupiter -- such a collision on Mars would produce a 'scientific bonanza,' Chesley said."
Re:Occluded for 2 weeks??? Bull**** (Score:3, Informative)
Re:Bad for studying Mars? (Score:2, Informative)
Re:It'd be so awesome (Score:3, Informative)
Re:Why? (Score:5, Informative)
You cannot apply this concept to Mars, which has no greenhouse effect in the first place. Its surface reflects most of the sunlight already, so reflective dust in its thin atmosphere would make no difference. You also can't apply it to Venus, which is a greenhouse. Its atmosphere is already highly reflective, and it is only as hot as it is because the tiny amount of sunlight it absorbs is prevented from escaping.
Re:Why? (Score:5, Informative)
Orbit viewer (Score:2, Informative)
Loos like the asteroid could come close to Earth's orbit in 2011. Hope it hits Mars before that!
Re:It won't be the same. (Score:1, Informative)
It may be far greater impact than Tunguska was, but only cause may suck more at math than we though.
http://www.sandia.gov/news/resources/releases/2007/asteroid.html [sandia.gov]
Re:beagle... Brits and technology .. (Score:3, Informative)
Re:Occluded for 2 weeks??? Bull**** (Score:3, Informative)
The Nasa neo page for this object [nasa.gov] has more info about the asteroid.
Re:And if it doesn't hit... (Score:2, Informative)
its = possessive
it's = it is
Re:Why? (Score:3, Informative)
Also, Mars's albedo is 0.15, significantly lower than Earth's. I'm not sure what you mean by "Its surface reflects most of the sunlight already," but I have a hard time seeing Mars's surface as being very reflective.