Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

Far beyond the eight familiar planets in our solar system, countless bizarre and extreme worlds await discovery — and some ...

For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare great planetary alignment. Here's how to make sure you don't miss this ...

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

Floating around at the edge of the Solar System are leftovers from its formation. This is the Kuiper Belt, which is composed ...

A very rare treat is about to grace Earth's night skies.

This story appears in the July 2013 issue of National Geographic magazine. The dust speck had been plucked from the tail of a comet more than 200 million miles away. Now, under an electron ...

Following is the transcript of the video. Narrator: Black holes are some of the most powerful and violent objects in the universe. They can warp space and time and rip entire stars to pieces.

Earth has a nearly circular orbit, but some planets outside our solar system, called exoplanets, have very elliptical orbits.

If microscopic black holes born a fraction of a second after the Big Bang exist, as some researchers suspect, then at least one may fly through the solar system per decade, generating tiny ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Two new exoplanets have been discovered orbiting a star belonging to a binary pair located ...