Juno

Juno

NASA’s Juno Mission Gets Under Jupiter’s and Io’s Surface

New data from the agency’s Jovian orbiter sheds light on the fierce winds and cyclones of the gas giant’s northern reaches and volcanic action on its fiery moon. NASA’s Juno mission has gathered new findings after peering below Jupiter’s cloud-covered atmosphere and the surface of its fiery moon, Io. Not only has the data helped […]

Posted April 29, 2025

Juno

Jet Propulsion Laboratory

Jupiter

Jupiter Moons

The Solar System

NASA Juno Mission Spots Most Powerful Volcanic Activity on Io to Date

Even by the standards of Io, the most volcanic celestial body in the solar system, recent events observed on the Jovian moon are extreme. Scientists with NASA’s Juno mission have discovered a volcanic hot spot in the southern hemisphere of Jupiter’s moon Io. The hot spot is not only larger than Earth’s Lake Superior, but […]

Posted January 28, 2025

Juno

Jet Propulsion Laboratory

NASA’s Juno Mission Uncovers Heart of Jovian Moon’s Volcanic Rage

A new study points to why, and how, Io became the most volcanic body in the solar system. Scientists with NASA’s Juno mission to Jupiter have discovered that the volcanoes on Jupiter’s moon Io are each likely powered by their own chamber of roiling hot magma rather than an ocean of magma. The finding solves […]

Posted December 12, 2024

Juno

Europa

Jet Propulsion Laboratory

Jupiter

Jupiter Moons

The Solar System

Danish Instrument Helps NASA’s Juno Spacecraft See Radiation

Using cameras designed for navigation, scientists count ‘fireflies’ to determine the amount of radiation the spacecraft receives during each orbit of Jupiter. Scientists with NASA’s Juno mission have developed the first complete 3D radiation map of the Jupiter system.

Posted August 20, 2024

Jet Propulsion Laboratory

Juno

Jupiter

NASA’s Juno Mission Captures the Colorful and Chaotic Clouds of Jupiter

During its 61st close flyby of Jupiter on May 12, 2024, NASA’s Juno spacecraft captured this color-enhanced view of the giant planet’s northern hemisphere. It provides a detailed view of chaotic clouds and cyclonic storms in an area known to scientists as a folded filamentary region. In these regions, the zonal jets that create the […]

Posted July 19, 2024

Juno

Jet Propulsion Laboratory

Jupiter

Jupiter Moons

NASA’s Juno Gets a Close-Up Look at Lava Lakes on Jupiter’s Moon Io

Infrared imagery from the solar-powered spacecraft heats up the discussion on the inner workings of Jupiter’s hottest moon. New findings from NASA’s Juno probe provide a fuller picture of how widespread the lava lakes are on Jupiter’s moon Io and include first-time insights into the volcanic processes at work there.

Posted June 26, 2024

Juno

Jet Propulsion Laboratory

Jupiter

Jupiter Moons

The Solar System

NASA’s Juno Provides High-Definition Views of Europa’s Icy Shell

Imagery from the solar-powered spacecraft shows some intriguing features on the ice-encased Jovian moon. Images from the JunoCam visible-light camera aboard NASA’s Juno spacecraft supports the theory that the icy crust at the north and south poles of Jupiter’s moon Europa is not where it used to be.

Posted May 15, 2024

Jet Propulsion Laboratory

Juno

Jupiter

Jupiter Moons

The Solar System

NASA’s Juno Mission Spots Jupiter’s Tiny Moon Amalthea

NASA’s Juno mission captured these views of Jupiter during its 59th close flyby of the giant planet on March 7, 2024. They provide a good look at Jupiter’s colorful belts and swirling storms, including the Great Red Spot. Close examination reveals something more: two glimpses of the tiny moon Amalthea (see Figure B below). Figure […]

Posted May 13, 2024

Juno

Jupiter

The Great Red Spot

Jupiter’s Great Red Spot

This April 1, 2018, enhanced-color image of Jupiter’s Great Red Spot was captured by NASA’s Juno spacecraft. The image is a combination of three separate images taken as Juno performed its 12th close flyby of the planet. The Great Red Spot, a swirling oval of clouds twice as wide as Earth, has been observed on […]

Posted May 7, 2024

Juno

Jet Propulsion Laboratory

Jupiter

Jupiter Moons

The Solar System