Ammonia from meteorites could have aided start of life on Earth
Asteroids and comets have long been suspected of helping nudge Earth toward life. The interplanetary interlopers have struck Earth since the beginning, delivering carbon, water, and sometimes organic compounds such as amino acids . By providing key chemicals or even pre-formed biological building blocks , as well as the heat and energy generated by a meteorite impact, space rocks may have played ...
Source: Scientific American
