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 ...

One night last fall, University of Cincinnati astrophysics graduate Paul Smith waited anxiously for data to start rolling ...

Scientists discovered a mini-Neptune with a heavy atmosphere, revealing new clues about how planets migrate through young ...

Lording it over the heavens this month is the planet Jupiter, king of the gods in Roman mythology and the leading light of January’s sky. The planet is opposite to the Sun on 10 January, when it is ...

Astronomers say they have spotted, for the first time, what appears to be the exposed core of a gas giant planet that has shed -- or never found -- its gaseous atmosphere. A team lead by the ...

For decades, astronomers have struggled to differentiate giant planets from brown dwarfs, a class of objects more massive than planets but too small to ignite nuclear fusion like true stars. Through a ...

One way gas giants form is through core accretion, where solid cores gradually grow in a disk by pulling in rocky and icy pebbles until they become massive enough to attract the gas that surrounds ...