Astronomers may have finally worked out how planets between the size of Earth and Neptune – which aren't found in our Solar ...

One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet between the ...

Scientists measured mass and distance of free floating planet drifting through space without star for first time.

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...

Scientists have finally worked out where the most common kinds of planets come from.

A potential new type of celestial object has all the makings of a normal small galaxy. It’s rich with the same hydrogen gas ...

Choose your fighter for the origin of water on Earth! Was it always here or did it come to this planet from somewhere else in ...

Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close ...

The Virgo cluster, despite being millions of light-years away, closest large galaxy cluster to Earth. The Virgo galaxy cluster has been pivotal in the history of astronomical findings. In fact, one of ...

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...