Astronomers have discovered a new class of exoplanet that defies traditional categories of planetary classification. In a ...

Explore the wonders of the universe in this video as we delve into the question: How many planets exist in the universe? Gain ...

Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

Greek mythology has given a name to a great many objects in our solar system. But perhaps one of the least well understood ...

Talk about a hot mess. Scientists have uncovered a hellish “lava world” where temperatures soar to a blistering 2,700 degrees Fahrenheit — hot enough to melt rock into a churning ocean of magma and ...

A thick layer of haze around the ultra-low-density planet Kepler-51d likely obscures not only the strange planet's ...

Kepler-51d is a giant, ultra-light “super-puff” planet wrapped in an unusually thick haze that’s blocking scientists from ...

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

The findings, which imply that molten planets may be quite common, suggest astronomers may need to be more cautious about ...

A hazy, ultra-light “super-puff” planet, Kepler-51d, is hiding its secrets and challenging how scientists understand planet formation.

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