Mars. From forming black holes to phantom dark energy, discover the cosmic mysteries astronomers uncovered last year.

Radio signals have been travelling through space since 1906, forming Earth’s radio bubble. Now 119 light years wide, it covers about 75 star systems, the signals fading into noise ...

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

Just in time for Christmas, a vast star-forming region shaped like a Christmas tree is lighting up space 2,700 light-years ...

Spielberg has long been known for his love of alien-related material. That's why he produced the abduction-based Taken ...

Last Friday, the interstellar comet designated 3I/ATLAS completed its closest approach to Earth without crashing into us or depositing an invading armada.

Barakat’s photograph quietly underscores that reality. The scene feels extraterrestrial, not because it is unfamiliar, but ...

Looking ahead, the comet will pass roughly 33 million miles from Jupiter in March 2026. Loeb noted the scientific value: monitoring 3I/ATLAS with the Juno spacecraft could reveal unusual activity, ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

“Hollywood has preconditioned us to expect one of two types of alien contact, either a hostile invasion force or a benevolent ...

Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.

In the vast, quiet theatre of deep space, not many things capture the human imagination like a traveler from another world.