Beneath the icy silence of Antarctica's famous Dry Valleys lies a world so unusual that it often resembles another planet.

Data from NASA’s Perseverance rover confirms the presence of macromolecular carbon on Mars – another potential piece of the ...

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

Deep beneath the Atlantic, an alien-like lost city of towering chimneys offers clues to life on Earth and other worlds.

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet K2-18b, most experts do not yet think alien life has probably been found.

With that, exobiologists avoided one of the things they fear the most: the false positive—seeing the existence of life where ...

Deep beneath the ice of Antarctica sits a lake that looks less like Earth and more like Mars. NASA scientists expected nothing more than frozen silence. Instead, they found a body of water with oddly ...

NASA's Curiosity rover took this selfie at a site on Mars where it drilled a sample to search for organic molecules in October 2020. Credit: NASA / JPL - Caltech / MSSS Scientists know those ...

NASA's Curiosity rover has identified more organic compounds on Mars as scientists strive to learn whether the Red Planet ever harboured life. Five of the seven diverse organic compounds, which were ...