Most have been found via microlensing: their gravity acts as a lens that boosts the light of a background star in a ...

Super-Earths can exist in wider orbits around their parent stars than was previously believed, suggesting these Earth-like ...

Earth is the only planet in the known universe that has the right combination of water, atmosphere, temperature, and chemical ...

The Hubble Space Telescope "opened a new window to the universe" when it launched into space. Now, 35 years later, NASA is ...

In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest ...

Rogue planets ... galaxy than ones orbiting stars. How many of them once circled our own sun? How many planetary siblings have we lost? None? One? Four? We’ll likely never know; our solar system ...

The robotic Cassini spacecraft which is now orbiting Saturn looked back toward the eclipsed Sun and saw ... practically a solar system unto itself. Pluto may not count as a planet anymore, but ...

A recent study published using data collected by the James Webb Space Telescope (JWST) has reported the most detailed study of the atmosphere of a planet beyond the Solar System yet, including ...

"Any claim of life on another planet requires a lot of justification, and I don't think we're there yet, Måns Holmberg, a ...