Scientists have measured that Jupiter releases more internal heat than it absorbs from the Sun, based on observations of its structure, rotation, and atmospheric behavior.

New calculations reported by Live Science indicate Jupiter was once much larger and is still contracting as it cools, offering constraints on early solar system conditions.

SAN ANTONIO — Oct. 9, 2007 — During the first traversal nearly straight down any planet’s magnetotail, the Solar Wind Around Pluto (SWAP) instrument aboard New Horizons gathered remarkable new data on ...

Jupiter’s iconic Great Red Spot (GRS) – a 16,000-kilometer-wide tempest that has been churning in the planet’s atmosphere for several centuries – extends deeper into the gas giant than previously ...

NASA’s Juno mission, the solar-powered robotic explorer of Jupiter, has completed its five-year prime mission to reveal the inner workings of the solar system’s biggest planet. Since 2016, the ...

A remarkable picture shows the two largest planets in the solar system, Jupiter and Saturn, in the night sky over the legendary Mitchell's Fold stone circle. The circle, which is located in southwest ...