It all started when a doctoral candidate at the University of Washington found a Sun-like star behaving strangely.

Using the Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered a new super-Earth exoplanet orbiting a star located about 83 light years away. The newfound alien world is slightly ...

Astronomers have witnessed evidence of an extremely violent collision between planets, and it resembles the event in Earth's ...

A distant Sun-like star began dimming unpredictably, prompting astronomers to investigate what was blocking its light.

Finding Earth-like planets orbiting sun-like stars and identifying signs of life such as oxygen or water is a major goal in ...

In our solar system, Jupiter is the undisputed king. If you added more mass to Jupiter, it wouldn’t actually get much bigger ...

The planet completes one orbit around its host star in roughly 3.97 days and lies extremely close to it at a distance of ...

Sixty-six light-years away, an Earth-sized exoplanet completes an orbit in under six hours, skimming around its star at ...

Learn about the first images of low-mass stars captured by SPARCS, a nanosatellite that could provide insight into exoplanets ...

A new study shows that stars with low magnetic activity are likely to support exoplanetary systems, making the hunt for these ...

The planets have been nicknamed Earth's seven sisters. — -- An international team of astronomers has discovered seven potentially habitable exoplanets — or planets outside our solar system — that ...

The James Webb Space Telescope has directly observed the key chemical of carbon dioxide in planets outside of our solar system for the first time, scientists announced Monday. The gas giants are not ...