An alternate explanation that fits the evidence is that Vesta was once part of a planet – but which planet that might been ...

These types of exoplanets are some of the most common in our galaxy - but they've remained mysterious until now.

NASA’s James Webb Space Telescope has uncovered groundbreaking insights into the world of sub-Neptunes, a class of exoplanets ...

Astronomer Eliza Kempton said that she had waited her "entire career" to peer into an atmosphere from this mysterious class of planets.

Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

Asteroid experts are pondering the scientific output from the NASA Lucy spacecraft after it shot by its celestial destination, the main belt asteroid named Donaldjohanson.

Astronomers using NASA’s James Webb Space Telescope have taken a major step toward understanding a puzzling type of planet ...

NASA’s Juno mission has gathered new findings after peering below Jupiter’s cloud-covered atmosphere and the surface of its ...

Astronomers have long speculated about an unseen planet lurking in the solar system's outer edge. This hypothetical world, ...

Though they don't orbit around our sun, sub-Neptunes are the most common type of exoplanet, or planet outside our solar ...

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. In 1983 ...