Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

We live in a very exciting time: answers to some of the oldest questions humanity has conceived are within our grasp. One of ...

One hundred twenty light-years from us, there is an exoplanet that can potentially host life. It's called K2-18b, and it's ...

Aliens may have lived in our solar system, according to new research. NASA scientists have unveiled evidence that the dwarf ...

Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a ...

Of all the various subgenres attached to the sci-fi domain, alien invasion flicks come off as timeless favorites. Here are ...

New polarimetry data on interstellar comet 3I/ATLAS reveals bizarre refractory dust, proving this alien visitor formed in a ...

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

Scientists have identified an unexpected way to study the hidden space weather of distant stars by observing strange, ...

Earth is home to creatures so strange, beautiful, and bizarre that it’s easy to forget we share the planet with them. These ...

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...