All forms of Earth life have specific chemicals in their makeup, such as amino acids and sugars. Scientists have known that ...
NASA scientists found amino acids, key minerals, and nucleobases for DNA in samples from the OSIRIS-REx asteroid mission.
YR4 has a small chance of hitting Earth in 2032, and China is preparing to deter it by mirroring a U.S. space test.
New calculations suggest that a large asteroid recently predicted to have an increased odds of striking Earth could miss the ...