NASA has confirmed the discovery of a mysterious new planet beyond Neptune, shaking up our understanding of the outer reaches ...

Did you know our solar system might have had an extra planet? Scientists believe a mysterious ninth planet once existed but ...

Aimed at the nearby star PDS 70, the James Webb Space Telescope is watching newborn planets take shape before our eyes in ...

Sure, they’re particles and rocks, but they’re still a fascinatingly long way from home. Alpha Centauri is the star system ...

The exoplanet – a planet outside our solar system – has a mass six times greater than that of Earth, and orbits in the “habitable zone” of a nearby star similar to our sun ...

New paper points to the Alpha Centauri triple star system as likely potential source of millions of interstellar asteroids and comets.

For much of January and February, you have the chance to see six planets in our solar system after dark, although two — Uranus and Neptune — will be tough to see without a telescope or high ...

Despite common assumptions, the disk of our Solar System is warped, and the planets travel around the Sun in slightly eccentric (or oblong) orbits. Scientists now think that a mysterious object ...

Oumuamua and Comet Borisov in 2017 and 2019, respectively, created a surge of interest. What were they? Where did they come ...