A distant star system with four super-sized gas giants has revealed a surprise. Thanks to JWST’s powerful vision, astronomers detected sulfur in their atmospheres — a chemical clue that they formed ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...

Jupiter’s swirling storms have concealed its true makeup for centuries, but a new model is finally peeling back the clouds.

The planets orbit a star around 133 light-years away from Earth.

“This research helps us understand how planets form and evolve… by studying what’s happening inside Jupiter, we get closer to ...

The discovery provides new insights into the question, 'how large can a planet be?' An illustration of the HR 8799 system with three of its gas ...

Jupiter, the largest planet in the solar system, isn’t exactly the size and shape scientists believed it was. New measurements from the Juno spacecraft show ...

New simulations suggest Jupiter holds far more water than once thought, reshaping ideas about how the largest planet formed.

New measurements from the Juno probe show that the largest planet in the solar system is slightly smaller and flatter than ...

Between 7 satellite fly-bys and 2 dedicated missions, you'd think our knowledge about Jupiter would be pretty solid, but we're still learning more.

For over 50 years, we thought we knew the size and shape of Jupiter, the solar system's largest planet. Now, Weizmann ...

New research data using NASA’s Juno spacecraft shows Jupiter is slightly smaller and flatter than decades-old estimates.