When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of confirmed dwarf planets and their moons. From left to right: Pluto (with ...

There are 8 planets in our solar system. The planets orbit the Sun in elliptical trajectories, and they are all different in size, composition, temperature, and characteristics. The planets can be ...

Astronomers have spotted an Earth-sized planet drifting alone through the Milky Way, detected briefly by bent starlight, ...

New wide field view mosaic from the James Webb Space Telescope spectroscopic survey of NGC1333 with three of the newly discovered free-floating planetary-mass objects indicated by green markers.

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

The Solar System is home to a remarkable range of planets, from tiny rocky worlds to massive gas giants. But just how big are these planets really? To put it into perspective, we can run some ...