A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?

Experts have determined it to be a "super-puff," an exoplanet with a large but extended atmosphere. The most noteworthy ...

Astronomers have discovered an alien world that defies every planetary rule with its massive size, low density, and tilted ...

Astronomy news today is packed with discoveries about the Sun, including tiny solar loops and hidden engines that drive solar ...

The Mauve telescope, developed by London-headquartered start-up Blue Skies Space, is the size of a small suitcase and carries ...

Astronomers are investigating a strange class of exoplanets known as eccentric warm Jupiters — massive gas giants that orbit ...

Deep in outer space, astronomers have discovered another "odd radio circle" — the latest in a short list of mysterious rings ...

With help from citizen scientists, astronomers have found the most powerful and distant "odd radio circle" ever detected.

The Copernican Principle, named in honor of Nicolaus Copernicus (who proposed the heliocentric model of the universe), states ...

The find represents the first clear detection of a baby planet taking shape within a disc of dust and gas with multiple rings. The ground-breaking discovery was made using European Southern ...

The discovery of the "hot Jupiter" exoplanet 51 Pegasi b on Oct. 6, 1995 changed the course of astronomical history.

A newly discovered odd radio circle in space could serve as a time capsule for the violent events that shape galaxies.