NASA’s Europa Clipper, depicted in this illustration that was updated in December 2020, will swoop around Jupiter on an elliptical path, dipping close to its moon Europa on each flyby to collect data. Credit: NASA/JPL-Caltech Take a closer look at the complex choreography involved in building NASA’s Europa Clipper as the […]

Jupiter is shown in visible light for context underneath an artistic impression of the Jovian upper atmosphere’s infrared glow. The brightness of this upper atmosphere layer corresponds to temperatures, from hot to cold, in this order: white, yellow, bright red and lastly, dark red. The aurorae are the hottest regions […]

In 1998, Hubble’s Space Telescope Imaging Spectrograph (STIS) took these first ultraviolet (UV) images of Ganymede, which revealed a particular pattern in the observed emissions from the moon’s atmosphere. The moon displays auroral bands that are somewhat similar to aurora ovals observed on Earth and other planets with magnetic fields. […]

NASA’s Juno Mission observed pulsating electromagnetic ion cyclotron waves in Jupiter’s dawn magnetosphere that periodically expel energetic heavy ions into the atmosphere, producing stunning X-ray pulsations as captured by ESA XMM-Newton. Credit: ESA/NASA/Yao/Dunn An international research team led by YAO Zhonghua from the Institute of Geology and Geophysics of the […]

This processed image of Io by New Horizons shows the 290-kilometer-high (180-mile-high) plume of the volcano Tvashtar near Io’s north pole. Also visible is the Prometheus volcano’s much smaller plume in the 9 o’clock direction. The top of the Masubi volcano’s plume appears as an irregular bright patch near the […]

Ganymede flyby. Credit: NASA The probe flew closer to Jupiter’s largest moon, Ganymede, than any other spacecraft in more than two decades, offering dramatic glimpses of both the icy orb and the gas giant. On June 7, 2021, NASA’s Juno spacecraft flew closer to Jupiter’s ice-encrusted moon Ganymede than any […]

A volcanic eruption on Jupiter’s moon Io. Credit: NASA/JPL/DLR It’s been 30 years since NASA last visited Venus, with the Magellan orbiter in 1990. Now, two new missions have been selected to explore the deadly atmosphere, crushing pressures and volcanic landscape. The process dates back to February 2020, when NASA announced that four missions were to […]

This illustration, updated as of December 2020, depicts NASA’s Europa Clipper spacecraft. The mission, targeting a 2024 launch, will investigate whether Jupiter’s moon Europa and its internal ocean have conditions suitable for life. Credit: NASA/JPL-Caltech Jupiter’s moon Europa has an icy crust covering a vast, global ocean. The rocky layer […]

“Clyde’s Spot” on Jupiter imaged by Juno on April 15, 2021. Image data: NASA/JPL-Caltech/SwRI/MSSS. Image processing by Kevin M. Gill © CC BY­­. During its 33rd low pass over the cloud tops of Jupiter on April 15, 2021, NASA’s Juno spacecraft captured the intriguing evolution of a feature in the giant planet’s atmosphere known […]