Interstellar visitors don’t have this problem because they were never part of the solar system’s plane to begin with.

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 ...

Alien life may be hiding much closer to home than science fiction would have us believe, according to a particle physicist ...

One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about "little green men" here, however — more "little (and not so little) gray rocks ...

Scientists may have discovered how extraterrestrial civilizations could actually detect and find Earth.

Three researchers recently published a paper speculating about whether an object (likely a comet) could be "hostile" alien technology Scientists estimate the object to be more than 12-miles-wide, ...

Here’s what you’ll learn when you read this story: Every time an interstellar object comes whizzing into our Solar System, it brings with it a certain intrigue. Where is it from? How did it form? Why ...

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

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Pluto’s been making news again. Jared Isaacman, the head of NASA, recently suggested that ...