China is positioning itself to take the lead in one of the most coveted goals in planetary science—returning samples from ...

Curiosity, NASA's Mars rover, accidentally cracked open a seemingly ordinary rock, revealing an unexpected yellow substance ...

Microbes have been discovered alive inside 2-billion-year-old rock, offering a rare window into Earth’s deep past. Found in ...

NASA astronaut Nichole Ayers captured an electrifying image of a giant lightning "sprite" shooting up over Mexico and ...