Saturday, April 23, 2011
Saturday, April 16, 2011
Wednesday, April 06, 2011
Friday, April 01, 2011
a group of U.S. researchers has found evidence of emission of extraterrestrial nitrogen by a primitive meteorite.
Nitrogen is a chemical element essential for life, found in all terrestrial organisms.
Until recently a big argument against this idea was the belief that life forms could not possibly survive the rigours of deep space.
It is now known, however, that some bacteria, viruses and even primitive animals such as the tiny insect-like eight-legged tardigrade — an earthly creature which scientists have taken into space — can easily survive, perhaps for millions of years, in the radiation-bathed vacuum of space.