A distant 'exomoon' the size of Jupiter is changing how we think about the cosmos.

Have astronomers observed the first exomoon, or have they spotted a weird object that could challenge the very concept of ...

This video explores the key characteristics of each planet within our solar system. Suitable for teaching science at KS1 and ...

Our solar system has had some really rare visitors. Oumuamua was the first known interstellar object to zip through our solar ...

Astronomers directly imaged a Jupiter-mass object orbiting a brown dwarf 72 light-years away, making it the strongest candidate yet for the first known exomoon.

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our solar system that could support life in some form.

It may not feel like it, but everything in the universe is in constant motion. Our Sun, with all its planets, orbits the center of the Milky Way, flying through the cosmos at around 450,000 miles per ...

Since the first planet beyond our solar system was confirmed in the 1990s, astronomers have gone on to catalogue more than ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Theorbits of Jupiter, Saturn, Uranus and Neptune may have been altered ...

In a major milestone in the search for life on other planets, astronomers have detected, for the first time, an atmosphere ...

LAKE GEORGE, N.Y. (NEWS10) — If you’ve ever wondered just how big our solar system really is– now you can walk it. Lake ...

Astronomers have discovered a rare planetary system 71 light-years away, where a Jupiter-sized world orbits a brown dwarf, ...