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

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

Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

It's estimated there may be trillions of rogue planets wandering through the Milky Way, unbound to any star. Since detecting ...

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

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

A newly discovered exoplanet is rewriting the rules of what planets can be. Orbiting a city-sized neutron star, this ...

Key takeawaysPlanets larger than Earth but smaller than Neptune are the most common kind in the galaxy, but because our solar ...

Around the bright star Fomalhaut, astronomers spotted glowing clouds of debris left behind by colossal collisions between ...