An image taken by Curiosity last month has sparked claims of a long-lost civilization on the Red Planet after some spotted a ...

Research on Mars has revealed diverse geological, atmospheric, and subsurface features that may hold clues to past life. Evidence ranges from ancient river basins, clay-rich sediments, and possible ...

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.

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

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth. While exploring an ancient river valley on Mars, the rover detected complex ...

The NASA Opportunity Rover has once again sparked fascination after one of its older images resurfaced online, reigniting speculation about unusual objects scattered across the surface of Mars. While ...

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

Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the ...

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