Beyond Neptune lies the Kuiper Belt, a vast expanse of icy bodies that may hold clues to the solar system’s formation. These ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

HD 20794 d completes its orbit just shy of two Earth years, placing it well within reach of conditions that might harbor life ...

One of the most common types of exoplanets falls in a size range between Earth and Neptune. Astronomers have debated whether these planets are Earth-like rocky planets with thick hydrogen-rich ...

"Super-Earths – a class of planets unlike any in our solar system – are more massive than Earth yet lighter than ice giants ...

Astronomers discovered supersonic winds on a giant gas planet located over 500 light-years from Earth. In a study released ...

turning this into a planetary parade of all seven planets in our solar system other than Earth. It will be difficult to see them all since Saturn, Mercury and Neptune will be quite close to the ...

Here’s what you should know when you go outside to see for yourself: Yes, the planets are indeed lined up across our sky. No, ...

The closest of the asteroids to us—estimated to be about the size of a car—is whizzing through space at 27,358 miles per hour.