http://www.bbc.co.uk/news/science-environment-25201572The asteroid that wiped out the dinosaurs may have catapulted life to Mars and the moons of Jupiter, US researchers say.
They calculated how many Earth rocks big enough to shelter life were ejected by asteroids in the last 3.5bn years.
The Chicxulub impact was strong enough to fire chunks of debris all the way to Europa, they write in Astrobiology.
Thousands of potentially life-bearing rocks also made it to Mars, which may once have been habitable, they add.
"We find that rock capable of carrying life has likely transferred from both Earth and Mars to all of the terrestrial planets in the solar system and Jupiter," says lead author Rachel Worth, of Penn State University.
"Any missions to search for life on Titan or the moons of Jupiter will have to consider whether biological material is of independent origin, or another branch in Earth's family tree."
Panspermia - the idea that organisms can "hitchhike" around the solar system on comets and debris from meteor strikes - has long fascinated astronomers.
But thanks to advances in computing, they are now able to simulate these journeys - and follow potential stowaways as they hitch around the Solar System.
In this new study, researchers first estimated the number of rocks bigger than 3m ejected from Earth by major impacts.
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Dinosaur asteroid 'sent life to Mars'
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klr
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Dinosaur asteroid 'sent life to Mars'
Not exactly earth-shattering (ahem) news:
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pErvinalia
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Re: Dinosaur asteroid 'sent life to Mars'
It would be exciting if they could find independently originating life on other planets/moons.
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klr
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Re: Dinosaur asteroid 'sent life to Mars'
Europa, here we come .. I mean, go. It's just going to take time ...rEvolutionist wrote:It would be exciting if they could find independently originating life on other planets/moons.
http://en.wikipedia.org/wiki/Europa_Jup ... _–_Laplace
God has no place within these walls, just like facts have no place within organized religion. - Superintendent Chalmers
It's not up to us to choose which laws we want to obey. If it were, I'd kill everyone who looked at me cock-eyed! - Rex Banner
The Bluebird of Happiness long absent from his life, Ned is visited by the Chicken of Depression. - Gary Larson
It's not up to us to choose which laws we want to obey. If it were, I'd kill everyone who looked at me cock-eyed! - Rex Banner
The Bluebird of Happiness long absent from his life, Ned is visited by the Chicken of Depression. - Gary Larson
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Clinton Huxley
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Re: Dinosaur asteroid 'sent life to Mars'
This would explain the velociraptors found by the Curiosity Rover and covered up by the US Govt, as usual.
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klr
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Re: Dinosaur asteroid 'sent life to Mars'
You've hit all the right buttons in the one sentence. Tinfoil hat time!Clinton Huxley wrote:This would explain the velociraptors found by the Curiosity Rover and covered up by the US Govt, as usual.
God has no place within these walls, just like facts have no place within organized religion. - Superintendent Chalmers
It's not up to us to choose which laws we want to obey. If it were, I'd kill everyone who looked at me cock-eyed! - Rex Banner
The Bluebird of Happiness long absent from his life, Ned is visited by the Chicken of Depression. - Gary Larson
It's not up to us to choose which laws we want to obey. If it were, I'd kill everyone who looked at me cock-eyed! - Rex Banner
The Bluebird of Happiness long absent from his life, Ned is visited by the Chicken of Depression. - Gary Larson
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