"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

British space scientist Dame Maggie Aderin–Pocock is sure that life is present on some other planet in the universe. Citing ...

A study using the Very Large Array radio telescope may have discovered a magnetic field on exoplanet YZ Ceti b. Magnetic fields protect planets from energetic particles that can strip away atmospheres ...

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 ...

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

A mysterious metal shard, once thought to be a piece of a UFO that crashed in 1947, has sparked years of wild speculation.

In the final episode of "Pluribus" season 1, Carol and Manousos finally meet—and revelations ensue. Here's what happens in ...

A new anomaly related to the size of particles in the interstellar object 3I/ATLAS has been detected. This was reported in his blog by Harvard University astronomer Avi Loeb.

Astronomers are closely tracking a mysterious interstellar comet showing an unusual wobble and unexpected flaring activity.