Interstellar visitors don’t have this problem because they were never part of the solar system’s plane to begin with. ʻOumuamua entered from above the ecliptic in 2017 on a steeply tilted trajectory, ...

Billions of years ago, while the solar system was still young, a massive object may have drifted into it. It's not a spaceship, but it is an alien visitor in its own right—a colossal interstellar body ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

Scientists have searched one of the only known visitors to us from another solar system for signs of alien technology – and ...

3I/ATLAS may be departing our solar system, but it’s still very much on Avi Loeb’s mind. In a recent blog post, the Harvard ...

Should we be concerned? According to Neil deGrasse Tyson, folks are buzzing about a “possible alien flyby in the next six to seven weeks” thanks to a massive celestial object exhibiting unusual ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for ...