Jupiter
Jupiter’s Great Red Spot Jiggles
Jupiter is well known for its Great Red Spot, a feature that was discovered by Galileo over 400 years ago!…
Ouch! A Monster Asteroid Crashed Into Ganymede 4 Billion Years Ago, Rolling it Over
Jupiter's moon, Ganymede, is a fascinating celestial body. Measuring 5,268 km (3,272 mi) in diameter, it is also the largest…
Is There a Low-Radiation Path To Europa?
Any mission to Jupiter and its moons must contend with the gas giant's overwhelming radiation. Only a judicious orbital pattern…
Why is Jupiter’s Great Red Spot Shrinking? It’s Starving.
The largest storm in the Solar System is shrinking and planetary scientists think they have an explanation. It could be…
New Images From Webb Reveal Jupiter's Complex Atmosphere
The James Webb Space Telescope (JWST) has accomplished some spectacular feats since it began operations in 2021. Thanks to its…
The Great Red Spot Probably Formed in the Early 1800s
Jupiter's Great Red Spot (GRS) is one of the Solar System's defining features. It's a massive storm that astronomers have…
New Telescope Images of Io are so Good, it Looks like a Spacecraft Took Them
The Large Binocular Telescope (LBT), located on Mount Graham in Arizona and run by the University of Arizona, is part…
Juno Reveals Secrets About Europa’s Icy Surface
Europa has always held a fascination to me. I think it’s the concept of a world with a sub-surface ocean…
Juno Reveals a Giant Lava Lake on Io
NASA's Juno spacecraft came within 1,500 km (930 miles) of the surface of Jupiter’s moon Io in two recent flybys.…
It's Time for Jupiter's Annual Checkup by Hubble
Each year, the Hubble Space Telescope focuses on the giant planets in our Solar System when they're near the closest…