The latest science news and headlines from Yahoo News, focusing on space, climate change and health-related breaking stories ...

Martian clay may have held water billions of years ago. By Andrew Paul By Harriet Weber By Laura Baisas By Stan Horaczek By Sarah Horaczek ...

Dec. 14 (UPI) -- Rocket Lab has successfully launched an Electron technology demonstration satellite for the Japan Aerospace ...

This week's science news was crammed with fascinating revelations about the workings of the human body, leading with the finding that zero gravity means zero game for humans looking to reproduce in ...

This week's science news was packed with stories that highlighted humanity's complex, often-fraught relationship with nature, with forecasters predicting the possible onset of a "super El Niño" this ...