EarthAll four of the key DNA building blocks have been found in meteorites We have now discovered all four building blocks of DNA in meteorite samples, suggesting that space rocks may have delivered the compounds to Earth, contributing to the origin of life News
SpaceNASA funds experimental radiation shield and Mars climbing robot Several futuristic projects have just been awarded money through NASA’s Innovative Advanced Concepts programme – here are Âé¶¹´«Ã½'s top five choices News