Giant planets are not rare per se — after all, we have four in our own solar system. Such large worlds are, however, rarely ...

As a result of the International Astronomical Union’s 2006 demotion of Pluto from planet to dwarf planet, our solar system ...

Called Kepler-725c, the faraway world has 10 times the mass of Earth, according to experts at the Chinese Academy of Sciences ...

The tiny pebbles left over from a star's formation fed the growth of one of the strangest, wildest worlds humanity has ever ...

Marina Barcenilla was studying the chemical makeup of interstellar bodies when she realized she could marry her two passions ...

How do ultra-hot Jupiters form and evolve? This is what a recent study published in Nature Astronomy hopes to address as a ...

New observations from the James Webb Space Telescope reveal the surprising origin of the ultra-hot exoplanet WASP-121b ...

Astronomers have been left puzzled by the discovery of an unusually large planet orbiting a remarkably small star, a cosmic ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

SCIENTISTS have stumbled across a new Super-Earth that orbits inside its star’s habitable zone with a new alien-hunting tool.