Terrestrial rocks blown into space by asteroid impacts on Earth could have taken life to Saturn's moon Titan, scientists have announced.
Earth microbes in these meteorites could have seeded the organic-rich world with life, researchers believe.
the impact on Earth that killed off the dinosaurs could have ejected enough material for some to reach far-off moons such as Titan
The theory of panspermia holds that life on planets like Earth and Mars was seeded from space, perhaps hitching a ride on meteorites and comets.
To get terrestrial, life-bearing rocks to escape the Earth's atmosphere and reach space requires an impact by an asteroid or comet between 10 and 50km across.
One of them is the asteroid strike 65 million years ago, which punched a crater between 160 and 240km wide in what is today the Yucatan Peninsula, Mexico.
Titan is rich in organic compounds
potential energy source for primitive life forms
thought to harbour a liquid water ocean
clipped from: news.bbc.co.uk 
