Jupiter is the largest planet in our Solar System and the fifth planet from the Sun. It is a massive gas giant made mostly of hydrogen and helium, the same elements that form stars.

The planet's radius from pole to center has been revised to 66,842 km, and at the equator to 71,488 km. That makes it about ...

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

NASA’s Juno spacecraft has forced planetary scientists to reconsider something they thought was settled: how big Jupiter actually is. New measurements show the solar system’s largest planet is ...

“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 ...

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

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 ...

Scientists report that the solar system’s biggest planet is slightly slimmer than past estimates, thanks to more precise readings from NASA’s Juno spacecraft.

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

According to this early data, Jupiter’s equatorial radius was around 44,423 miles (71,492 kilometers), and its polar radius ...