Alien life may not need the kind of home humans instinctively search for. Some of the strangest possibilities begin once ...

On planet Earth, our 'secondary atmosphere' has been with us for billions of years and its chemical balance reflects the ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

James Webb reveals how powerful winds and extreme temperature differences create an unusual atmospheric bulge on the giant exoplanet WASP-17b.

Using the same planet-hunting techniques as Earth astronomers, would inhabitants of a planet hundreds of light-years away be able to detect Earth? Or would the gas giants overpower their observations?

The object known as 3I/ATLAS (previously known as A11pl3Z), as per scientists, may be an alien technology that could ...

According to a study performed by U.S. and Spanish astronomers, alien astronomers could "hypothetically" identify Earth as a planet orbiting the Sun and observe our planet with clouds and oceans-just ...