How fast and in which direction is our solar system moving through the universe? This seemingly simple question is one of the ...

In 1949, famed mathematician and physicist John von Neumann delivered a series of addresses at the University of Illinois, ...

Recent research suggests that our solar system could already be hosting alien probes, potentially observing us from a distance. This idea aligns with a 2023 statement from a Pentagon UFO chief who ...

Learn how exoplanets are discovered, what makes planets beyond our solar system unique, and how they drive the ongoing search ...

A scientist says self replicating alien probes may already be hidden in the Solar System, possibly on the Moon, leaving ...

Something strange is moving through our solar system — and it’s making headlines everywhere. The mysterious object, known as ...

The Oort Cloud, an expanse of icy bodies in the far reaches of our solar system, is shown here in a scene from "Encounters in the Milky Way," a show at New York City's Hayden Planetarium that spawned ...

Water isn't just delivered to planets by comets and asteroids — it can also be forged as worlds form, a new study finds.

As telescopes have become more powerful, it’s turned out our solar system is not the only game in town: There are millions of ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Our solar system has been around for 4.6 billion years. While that sounds like a long time, it's ...

Who hasn't looked into the sky and wondered if there's life out there, somewhere, looking back at us? Is it possible there's alien life closer to home — within the bounds of our solar system? The ...