Jupiter

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…

7 days ago

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…

3 weeks ago

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…

1 month ago

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.…

2 months ago

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…

3 months ago

NASA’s Juno Probe Makes Another Close Flyby of Io

The Juno spacecraft has revealed some fascinating things about Jupiter since it began exploring the system on July 4th, 2016.…

5 months ago

Astronomers Test an Exoplanet Instrument on Jupiter

The European Southern Observatory's Very Large Telescope (VLT) has a high-resolution spectrograph called  ESPRESSO, designed specifically to detecting and characterize…

6 months ago

Juno Makes its Closest Flyby of Io

NASA's Juno spacecraft has been getting closer and closer to Jupiter's volcanic moon Io with each recent orbit. Juno is…

6 months ago

Juno Spots Salts and Organic Molecules on Ganymede’s Surface

During its last flyby of Ganymede, the Juno probe reported finding traces of mineral salts and organic molecules on its…

8 months ago

Jupiter Looks Bizarre in Hubble's New Ultraviolet Image

Jupiter has gone pastel! Check out this ultra-cool image of Jupiter taken by the Hubble Space Telescope. This is a…

8 months ago