Jupiter's great red spot viewed by Voyager I

At about 89,000 miles in diameter, Jupiter could swallow 1,000 Earths. It is the largest planet in the solar system and perhaps the most majestic.

A question for Jupiter

Jupiter's Great Red Spot is one of the solar system's most mysterious landmarks. Based on what scientists understand about fluid dynamics, this massive storm – which is big enough to engulf the Earth two or three times over – should have disappeared centuries ago.

Juno slingshots past Earth on its way to Jupiter

If you've ever whirled a ball attached to a string around your head and then let it go, you know the great speed that can be achieved through a slingshot maneuver. Similarly, NASA's Juno spacecraft will be passing within some 350 miles of Earth's surface at 3:21p.m. EDT Wednesday, Oct. 9, before it slingshots off into space on a historic exploration of Jupiter.

This comet was hidden in plain sight

For 30 years, a large near-Earth asteroid wandered its lone, intrepid path, passing before the scrutinizing eyes of scientists while keeping something to itself: 3552 Don Quixote, whose journey stretches to the orbit of Jupiter, now appears to be a comet.  

NASA's Juno is now halfway to Jupiter

NASA's Juno spacecraft is now halfway to Jupiter. 

Jupiter's water linked to comet impact

The European Space Agency's (ESA) Herschel space observatory has solved a long-standing mystery as to the origin of water in the upper atmosphere of Jupiter, finding conclusive evidence that it was delivered by the dramatic impact of comet Shoemaker-Levy 9 in July 1994.

Video: Hotspots ride a merry-go-round on Jupiter

In the swirling canopy of Jupiter's atmosphere, cloudless patches are considered so exceptional that the big ones are actually named "hot spots."

‘Super-Jupiter’ planet found orbiting massive star

Astrophysicists at the University of Toronto have discovered a new, huge exoplanet, 13 times bigger than Jupiter. It's in orbit round the massive star Kappa Andromedae, which is part of the constellation Andromeda. 

Jupiter's Trojan asteroids show their true colors

NASA's Wide-field Infrared Survey Explorer, WISE, has uncovered new clues about the Jovian Trojans - asteroids that orbit the sun on the same path as Jupiter in two 'packs'.

Huge explosion spotted on Jupiter

An amateur astronomer in Dallas has filmed an enormous explosion on Jupiter which took place early on Sunday morning.

From the Arctic to Jupiter's Europa moon

A Canadian fjord may help scientists improve their understanding of Jupiter's icy Europa moon.

ESA to probe Jupiter's icy moons with JUICE

The European Space Agency (ESA) is shifting its focus to study Jupiter's icy moons and plans on launching a mission from Kourou, French Guiana, in 2022. 



Jupiter boosts drama of Earth's meteor displays

We've got Jupiter to thank for the spectacular meteor showers associated with Halley's comet, says an Armagh Observatory astronomer.

The volcanoes of Io

A team of US scientists has managed to formulate the first complete global geologic map of Io, the innermost of Jupiter's largest moons. 


Just how old is Jupiter, exactly?

Particles from comet 81P/Wild 2 brought to Earth in 2006 by NASA's Stardust spacecraft seem to indicate that Jupiter formed more than three million years after the formation of the first solids in our Solar System.



Juno is on its way to Jupiter

The solar-powered Juno spacecraft lifted off aboard an Atlas V rocket this morning and began its five-year journey to the planet Jupiter.

Jupiter mission to launch today

The Juno spacecraft's set to lift off today on its way to Jupiter, with scientists hopeful that the mission will help answer questions about the formation of the solar system.

Solar system shaped by Jupiter's travels

A new model of the early solar system shows Jupiter rocketing about the place, moving toward the center of the solar system and back out again.

Billions of 'orphan planets' wander alone in space

Hundreds of billions of isolated planets are believed to be floating alone in space, following an international survey of the sky.

Magma ocean lies beneath Io's surface

There's a vast ocean of molten magma beneath the surface of Jupiter's moon Io, NASA scientists have found.