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 ...

Saturn surpasses Jupiter with 128 newly discovered moons, becoming the planet with the most moons in our solar system.

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

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away that has long been a ...

Astronomers have captured direct images of exoplanets in a star system 130 light years away, providing clues on gas giant ...

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

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

Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

Get ready to look up at the Iowa sky because there will be a rare planet parade in the night sky to end February. A planet parade is a colloquial term that refers to how planets form a straight ...

The number of known moons in our Solar System has been rising for centuries, but astronomers say it has probably peaked – for ...