Using data gathered by NASA's Juno Jupiter orbiter, scientists estimate that Europa's ice shell is about 18 miles thick — ...

3I/ATLAS captured the world's attention last month as the comet raced past the Earth, but some believed that it could have been an "alien spacecraft" reaching us ...

Dark, brutal, and unforgettable, Event Horizon takes sci-fi terror where Alien left off — straight into the depths of space ...

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

Professor Avi Loeb of Harvard cited three reasons 3I/ATLAS might be an alien spacecraft. First, its trajectory is highly ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory claims, but a comet.

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory ...

Astonishingly, we can identify molecules present in the atmospheres of exoplanets.

Quite a bit of movie magic made "Alien" the sci-fi horror classic it is -- but one of its biggest challenges was solved with ...