Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here on the International Space Station I get a great view of Earth.

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

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

Is there a 9th planet out there? We may soon find out. Is there a 9th planet out there? We may soon find out. Earth is a geological oddball in our solar system. This is why. Earth is a geological ...

A rare six-planet solar system, unchanged for billions of years, has been discovered 100 light-years from Earth. The planets are all ‘sub-Neptunes’, meaning they are smaller than our Neptune ...

Tiny grains from asteroid Ryugu are revealing clues to the magnetic forces that shaped the far reaches of the solar system over 4.6 billion years ago. The findings suggest the distal solar system ...

There may be an undiscovered planet in the outer solar system whose presence is revealed by the strange orbit of objects beyond the eighth planet Neptune. The tantalizing prospect of a ninth ...

Researchers have developed a new method using the Allen Telescope Array to search for interplanetary radio communication in the TRAPPIST-1 star system. A new technique allows astronomers to home ...

In fact, every planet—and every moon—in the solar system will be in the sky during the eclipse. However, that doesn’t mean you’ll see them all. Contrary to what you might have read ...

Our universe is full of mysterious sights and sounds. Explore some of our most frightful finds from past Halloweens.

Volcanic and tectonic activity on Earth have been critical to the evolution and survival of life on our planet, so understanding what drives the solar system’s volcanic worlds is a crucial first ...