Around 40 light years away from Earth, hidden in the constellation Pisces, there is a small alien world that has captured the ...

The giant asteroid made waves across the world last year when it came whizzing past Earth - with some experts convinced it ...

The Meadowlands system provides the U.S. military with a "robust toolkit for spectrum dominance," the Space Force said.

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

British sci-fi television is among the most influential in the genre, and this forgotten series from the 1970s is a part of ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.

Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned ...

The interstellar comet is a fossil from a planetary system that formed a long time ago in an area of our galaxy far, far away.

Astronomers have sharply revised down the mass of nearby super Earth GJ 3378b, dramatically improving its prospects as a ...

More than 500,000 stars glow in shades of red, white, and blue in a spectacular new image captured by NASA's Hubble Space ...

A comet screaming in from another star system carried alien ice ratios never seen before. What scientists found inside its spinning nucleus is reshaping how we picture worlds beyond our sun.