Astronomers are ready to search for the fingerprints of life in faraway planetary atmospheres. But first, they need to know where to look — and that means figuring out which planets are likely to have ...

A new model that incorporates data gathered by the JWST could help scientists understand the composition and mass of objects ...

Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...

For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that ...

The IAU also estimates that there could be "more than 100" extra dwarf planets waiting to be found in the outer solar system, all of which could have moons. "Just like the giant planet satellites ...

The Sun’s gravity holds all of these ... much smaller than planets so are also known as 'minor planets'. As well as planets and moons, the solar system also contains dwarf planets, which are ...