There is no universally accepted upper limit on interstellar flight speeds, but studies tend to converge around 19,000 miles per second (30,000 km/s) – 10% of the speed of light – as a realistic ...

Astronomers using the JWST discovered massive “rock clouds” made of vaporized minerals on the distant planet WASP-94A b.

Scientists say amino acids produced by life are distributed differently and more diversely than amino acids produced by ...

A new Nature Astronomy study warns that space missions are fixated on avoiding false alarms and may be quietly discarding ...

A lack of evening clouds on this world has allowed astronomers to get a good read on the planet's true composition.

There's lots of reasons Star Wars is a big part of pop culture history. These five perfect alien designs offer just one ...

WASHINGTON — President Trump is not a fan of illegal aliens. The commander-in-chief stunned the internet Sunday with an AI ...

How Radio Astronomy Helps Us See the Invisible Cosmos," astrophysicist Emma Chapman describes the hidden corners of space ...

A well-known conspiracy theory (also seen in The X-Files) attests that aliens are in communication with the U.S. government, ...

Neil deGrasse Tyson has had a lifelong fantasy of being abducted by aliens. That’s right, he actually wants to be taken.

Recently released FBI documents from 1955 detailed claims that aliens sent messages to members of one of the oldest UFO ...

Curiosity, which is exploring Gale Crater, conducted a chemistry experiment on a rock sample that revealed complex carbon ...