A comet from another star system is putting on a show that looks uncannily like a heartbeat, with bright jets of gas and dust ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

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

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

Humanity has sent into space everything from lightsabers and Tesla Roadsters to golden records and entire digital genetic ...

On Friday, interstellar comet 3I/ATLAS makes its nearest approach to Earth. Here's what you need to know, and how to track ...

Using JWST, scientists discovered PSR J2322-2650b — a carbon-rich, lemon-shaped exoplanet orbiting a pulsar — challenging ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

The mysterious space rock suggested to be a hostile alien spaceship was due to make its closest approach to Earth today (Dec ...

Comet 3I/ATLAS will be closest to Earth around 1 a.m. ET Friday, Dec. 19, according to Space.com, citing calculations from ...

Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will soon come as close to our planet as it ever will.