NASA’s Curiosity rover has assembled a string of chemical evidence from ancient Martian rocks that, taken together, builds the strongest circumstantial case yet for conditions that could have ...

NASA’s Curiosity rover has uncovered some of the largest organic molecules ever detected on Mars, and scientists say ordinary geology may not fully explain them.

Scientists studying a rock sample collected by NASA’s Curiosity rover have uncovered something tantalizing: the largest ...

More than a decade after landing in Gale Crater, NASA’s Curiosity rover has uncovered something unexpected in the Martian ...

In a new study, researchers say that nonbiological sources they considered could not fully account for the abundance of ...

NASA Curiosity rover, which launched from Florida in 2011, captured panoramic image of Mars that resembles a sunset on Earth.

NASA's Curiosity rover has detected long-chain organic molecules, alkanes, in an ancient Martian lake bed. Scientists argue these findings are difficult to explain through non-biological processes ...

Mars Express and Curiosity detected methane and long-chain organic molecules in Gale Crater, including decane, undecane, and dodecane analyzed by the SAM laboratory.

After the Red Planet reemerged from conjunction — a period when NASA doesn't communicate with spacecraft because Mars is ...

NASA's Curiosity rover has made its first measurements of the radiation environment at Mars' surface, gathering information that could help prepare future astronauts for stays on the Red Planet.

Add Yahoo as a preferred source to see more of our stories on Google. Mars, with its rust-hued surface, is known as the red planet for a reason. Along the way, Curiosity has made some extraordinary ...