The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

An illustration shows what exoplanet K2-18b might look like based on data from NASA's James Webb Space Telescope. K2-18b is 8.6 times as massive as Earth, orbits the cool dwarf star K2-18 in the ...

Scientists searched 27 exoplanets for alien technology using planetary eclipses, revealing a new way SETI hunts signals ...

First-year students in Rochester Institute of Technology’s Science Exploration Program are reproducing a slice of life in their lab that might exist on the seven Earth-like planets recently discovered ...

The search for life beyond Earth is a key driver of modern astronomy and planetary science. The U.S. is building multiple major telescopes and planetary probes to advance this search. However, the ...

‘Are we alone in the universe?’ is a question humanity has long asked. But a team of scientists has created a new way to answer whether aliens exist. Daniel Apai, an astrophysicist and astrobiologist ...

Imagine a planet twice as wide as Earth, covered in an ocean that smells like sweet cabbage. Every day, a faint red star warms this ocean world and the uncountable masses of hungry, plankton-like ...

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...