Astronomers have identified a strange new kind of exoplanet that challenges how scientists classify worlds beyond our Solar System. The planet, L 98-59 d, appears to contain a vast ocean of molten ...

How does fine dust aggregate into building blocks that ultimately form entire planets like our Earth? A research team led by ...

Scientists have uncovered a hellish “lava world” where temperatures soar to a blistering 2,700 degrees Fahrenheit — hot ...

Debate has raged for two decades over whether Pluto should be considered a planet. Some want President Trump to take action ...

What other types of planet are waiting to be uncovered?' astronomers asks after finding small molten, stinky world.

The traditional Habitable Zone (sometimes called the Goldilocks zone) is kind of like a campfire. If you sit too close, you ...

A mysterious metal-rich asteroid called Psyche has been baffling scientists for over two centuries, and its true origin ...

Using the James Webb Space Telescope, astronomers have discovered an example of a new class of exoplanet, and it smells like ...

The molten planet, with an atmosphere rich in sulfur-bearing gases, is unlike anything astronomers have ever smelled.

Mercury, Venus, and Mars sit within the same general neighborhood as Earth, yet each has followed a radically different path.