"These two planets have densities comparable to a nice blob of shaving foam fresh from the can." ...

Astronomers have uncovered a pair of giant planets that are lighter than cotton candy—super-puffs the size of Jupiter.

Explore the fascinating variety of planets in our Universe, from the smallest planets to super Earths, gas giants like ...

The two planets orbiting a star 1,110 light-years away are the biggest exoplanets ever found with a density lower than cotton ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't have hard surfaces. Jupiter and Saturn are the gas giants in our solar ...

For astronomers, technological advances are akin to getting better glasses—there’s often a big jump in resolution. It can make the world considerably clearer and, in the case of astronomy, expose some ...

A new study suggests Ganymede—our neighborhood's biggest moon—still has a hot, churning core cranking out its unique magnetic field. Reading time 3 minutes Jupiter, the biggest planet in our solar ...