Juno Spots ‘Hot Rings’ on Jupiter’s Volcanic Moon Io
These bright (hot) ‘thermal rings’ are a common phenomenon, and they are indicative of active lava lakes, according to a new analysis of data from the Jovian Infrared Auroral Mapper…
Water Frost Deposits Spotted on Tropical Martian Volcanoes
Using high-resolution color images from ESA’s Trace Gas Orbiter (TGO) and Mars Express missions, planetary researchers have found evidence for morning frost deposits on the calderas of the Tharsis volcanoes…
Venus is Currently Volcanically Active, New Study Confirms
Using radar data from NASA’s Magellan mission, planetary scientists have detected volcanic-related flow features in two different regions of Venus: on the western flank of Sif Mons and in western…
Study: Jupiter’s Moon Io Has Been Volcanically Active for All of Its History
Sulfur and chlorine isotopes in Io’s atmosphere indicate that it has been volcanically active for the entire 4.57 billion-year history of the Solar System. This global view of Io was…
NASA’s Juno Mission Provides Close-Ups of Intriguing Features on Io
In December 2023 and February 2024, NASA’s Juno spacecraft made extremely close flybys of Jupiter’s volcanic moon Io, getting within about 1,500 km (930 miles) of the surface and obtaining…
Planetary Scientists Discover Giant Shield Volcano on Mars
Provisionally designated Noctis Mons, the newly-discovered volcano is located just south of Mars’ equator, in Eastern Noctis Labyrinthus, west of Valles Marineris, the planet’s vast canyon system. Noctis Mons. Image…
Early Mars was Tectonically and Volcanically Active, Study Suggests
The relatively well-preserved ancient crust of Mars provides a natural window into early planetary evolution not available on Earth. Mars has generally been considered a one-plate basaltic planet, though recent…
NASA’s Juno Orbiter Captures Stunning Images of Jupiter’s Moon Io
On February 3, 2024, NASA’s Juno spacecraft made a second close flyby of Io, the fifth of Jupiter’s moons and the third largest. Like the previous flyby on December 30,…
ESA’s Mars Express Focuses on Surroundings of Olympus Mons Volcano
Lava flows on Olympus Mons probably melted ice in the ground, making the volcano flank unstable; rockfalls and landslides moved hundreds of km into the surrounding landscape, forming a characteristic…
Early, Energetic Collisions Could Have Fueled Venus Volcanism: Study
New research shows that long-lived volcanism, driven by early, energetic collisions on Venus, offers an explanation of its young surface age with stagnant-lid tectonics. This volcanic activity is fuelled by…