The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

Astronomers may have demoted Pluto from full-fledged planet to dwarf status, but evidence suggests the solar system may still ...

Discover how astronomers use stellar parallax to navigate spacecraft in deep space without relying on Earth-based beacons.

What can the presence of methane on a dwarf planet that orbits farther out than Pluto teach scientists about the formation ...

Scientists are in the midst of observing the exoplanet TRAPPIST-1 e with NASA's James Webb Space Telescope. Careful analysis ...