Jupiter, long treated as the solar system’s fixed point of planetary normalcy, has just been knocked off that pedestal. New ...

NASA shared that with a more precise shape, it will help astronomers understand data from planets seen passing in front of ...

Six planets will form a cosmic lineup Feb. 28 — here’s why the rare sight may be harder to spot than you think.

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...

“Textbooks will need to be updated,” study co-author Yohai Kaspi, a planetary scientist at the Weizmann Institute of Science in Israel, said in a statement. “The size of Jupiter hasn’t changed, of ...

Updated measurements from NASA’s Juno spacecraft could help researchers better understand the planet's mysterious interior, ...

Six planets will line up in a rare "planetary parade" this month - but spotting them all won't be easy.

HR 8799, located 129 light-years away, is home to a rare group of super-Jupiters, gas giants that are much larger than our own Jupiter. These planets, orbiting far from their star, present a unique ...

Jupiter, Mercury, Neptune, Saturn, Uranus, and Venus—will appear in the sky together in a special planet parade on Feb. 28. Here’s how to view the alignment.

This weekend, six planets are set to share the sky in a rare “planet parade,” giving stargazers a short but magical window to ...