The most enthralling rock yet found on Mars—a speckled hunk of mudstone that just may contain evidence of ancient alien life—is still worth getting excited about. The rock in question is packed with ...

Movile Cave in Romania has evolved independently since it was cut off from the air and sunlight 5.5 million years ago. Its extreme environment seems inhospitable to most life on Earth. Yet, this place ...

With the recent discovery of traces of what may or may not be or have been life on Mars, eyes are turning to another world in the solar system which might harbor extraterrestrial life. Old data from ...

A new study used mathematical formulas and demonstrated that it’s highly unlikely life began on Earth. Instead, the researcher points to panspermia, a theory that life or the ingredients for life came ...

New models suggest that Ceres, the asteroid belt's largest object, once had a radioactive core that could have sustained life in the dwarf planet's hidden subsurface ocean billions of years ago. When ...

Just last week, NASA's Perseverance rover dropped some major news from Mars that has everyone talking. A tiny rock sample, dramatically named "Sapphire Canyon," is showing tantalizing hints of what ...

A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The ...

In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...

"The universe is a pretty big place. So if it's just us... seems like an awful waste of space," goes a line from the 1997 film "Contact." In the movie, Jodie Foster plays Dr. Ellie Arroway, a radio ...