There are eight official planets (sorry, Pluto) in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and ...

The potential discovery of a large planet beyond Neptune’s orbit could change everything we know about the Solar System.

A few decades ago, the Solar System had nine planets, but in 2006 the International Astronomical Union reclassified Pluto as ...

The newcomer replacing Pluto presently goes by “Planet Nine.” If and when it finally shows up, it will get the honor of a ...

The BepiColombo spacecraft has sent back some incredibly detailed images of Mercury’s north pole. The snapshots were ...

Enigmatic planet Mercury posed for some closeups when the BepiColombo mission flew by. Craters, bright regions and volcanic ...

Sky gazers will get a peek at what has been called a "parade of planets," where this time around, up to seven planets may ...

January's sky brings a planet parade, Mars opposition, and the Quadrantid meteor shower. Enjoy Venus and Saturn's close ...

Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a ...

Accessible to anyone the world over, witnessing the majesty of the solar system, including the Milky Way, and its billions of ...

Some stargazers are calling it a planetary parade: Every other planet in our solar system can be seen in the sky tonight.

Dec. 19, 2024 — Scientists have unveiled groundbreaking research on the origins of lunar water, offering insights that could reshape our understanding of the Earth-Moon system and the broader ...