Erich von Däniken, the Swiss author whose books on the extraterrestrial origins of ancient civilizations brought him both ...

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 search for habitable worlds beyond the solar system now faces a more technical obstacle than distance: uncertainty in the ...