Red and white dwarfs may turn out to be the most promising objects for searching for hypothetical Dyson spheres, systems ...

Get the latest federal technology news delivered to your inbox. You might think this column is about UFOs and the Pentagon's ...

Astronomers have revised the mass of nearby exoplanet GJ 3378 b, recasting it as a rocky super‑Earth in the habitable zone ...

A planet with one side permanently roasting and the other frozen in endless darkness might still have a chance of supporting life. Researchers found that heat inside a tidally locked exoplanet could ...

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

An international team of astronomers reports the discovery of a new exoplanet orbiting a sunlike star as part of the Next ...

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

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

"Star Trek" may be science fiction, but the technology depicted in its shows has often led to real-world equivalents being ...

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