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 ...

The solar system has nine planets, but in 2006 the International Astronomical Union declared Pluto a dwarf planet, making the ...

But what’s it like on other planets? There are eight planets in our solar system. The closest one to the sun is Mercury, then it’s Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

You may need binoculars or a telescope for this one. It includes the three furthest planets in our solar system.

A joint Hubble and James Webb Space Telescope (JWST) project to learn more about the dusty disk around the bright star Vega ...

Astronomers have discovered an Earth-like planet orbiting a white dwarf 4,000 light years away, offering a glimpse into our ...

Exoplanets can be quite different from Earth, but occasionally researchers find one that gives a sneak peak into what the ...

Night sky observers always factor in the moon to determine the best time for astronomy viewing, especially for the two meteor ...

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 ...

About 4.6 billion years ago, this gigantic cloud was transformed into our Sun. The processes that followed gave rise to the solar system, complete with eight planets, 181 moons, and countless ...

If you’re in the path of totality on April 8, you’ll see planets. In fact, every planet—and every moon—in the solar system will be in the sky during the eclipse. However, that doesn’t ...

Think you know Earth? Think again! From our planet's powerful magnetic field to the oceans and life-sustaining atmosphere, this video uncovers fascinating aspects of Earth that often go untaught in ...