Tag Archive for 'Ganymede'

Distribution of furrows and location of the center of the furrow system shown in the hemisphere that always faces away from Jupiter (top) and the cylindrical projection map of Ganymede (bottom). The gray regions represent geologically young terrain without furrows. Furrows (green lines) exist only on geologically old terrains (black regions). Image credit: Naoyuki Hirata, doi: 10.1038/s41598-024-69914-2.

Ganymede Was Struck by Giant Asteroid 4 Billion Years Ago, New Research Suggests

Sep 3, 2024 by News Staff

Jupiter’s moon Ganymede has an ancient impact structure called a furrow system. This system is the largest impact structure in the outer Solar System,...

This graphic shows Juno’s model for radiation intensity at different points in the spacecraft’s orbit around Jupiter. Image credit: NASA / JPL-Caltech / DTU.

Planetary Reseachers Create 3D Radiation Map of Jovian System

Aug 27, 2024 by News Staff

Using data gathered by the Advanced Stellar Compass (ASC) and the Stellar Reference Unit (SRU) onboard NASA’s Juno orbiter, scientists have produced...

This image of Ganymede was obtained by the JunoCam imager aboard NASA’s Juno spacecraft during its June 7, 2021, flyby of the icy moon. Image credit: NASA / JPL-Caltech / SwRI / MSSS.

Juno Detects Various Salts and Organic Compounds on Ganymede

Nov 1, 2023 by News Staff

Using data from the Jovian InfraRed Auroral Mapper (JIRAM) aboard NASA’s Juno spacecraft, planetary scientists have detected hydrated sodium chloride,...

A spectroscopic map of Ganymede derived from Webb measurements shows light absorption around the poles characteristic of hydrogen peroxide; the circle outlines the surfaces of the moon. Image credit: Samantha Trumbo, Cornell University.

Webb Detects Hydrogen Peroxide on Ganymede

Jul 30, 2023 by News Staff

Jupiter’s moon Ganymede is the only satellite in the Solar System known to have an intrinsic magnetic field. Interactions between this field and the...

This view of Europa was captured by the JunoCam imager aboard NASA’s Juno spacecraft during the mission’s close flyby on September 29, 2022. Image credit: NASA / JPL-Caltech / SwRI / MSSS / Kevin M. Gill.

Local Tectonic Activity Could Cause Landslides on Icy Satellites of Jupiter and Saturn

Apr 17, 2023 by News Staff

Intense tectonism is evident on many outer solar system satellites — such as Ganymede, Europa, and Enceladus — with some surface regions showing...

JUICE lifted off on an Ariane 5 rocket from Europe’s Spaceport in French Guiana on April 14, 2023. Image credit: M. Pédoussaut / ESA.

ESA’s JUICE Spacecraft Launches to Study Jupiter’s Icy Moons

Apr 17, 2023 by News Staff

ESA’s latest interplanetary mission, the JUpiter ICy Moons Explorer (JUICE), lifted off on an Ariane 5 rocket from Europe’s Spaceport in French...

An artist’s impression of the surface of Jupiter’s icy moon Europa. Image credit: NASA / JPL-Caltech / SwRI.

Scientists Explain Why Jupiter’s and Saturn’s Icy Moons Have Extreme Radar Properties

Mar 23, 2023 by News Staff

The radar properties of icy satellites of Jupiter and Saturn commonly differ by more than an order of magnitude from those of rocky planets because of...

The surface of Europa looms large in this newly-reprocessed color view; image scale is 1.6 km per pixel; north on Europa is at right. Image credit: NASA / JPL-Caltech / SETI Institute.

Planetary Scientists Create Two New Forms of Extraterrestrial Ice

Feb 21, 2023 by News Staff

University of Washington researcher Baptiste Journaux and colleagues believe the newly-created substances could form at the surface and bottom of deep...

Deimos passing in front of Jupiter and its Galilean moons. Image credit: ESA / DLR / FU Berlin / K.-D. Matz.

Mars Express Observes Rare Celestial Alignments in Solar System

Oct 14, 2022 by News Staff

New videos captured by the High Resolution Stereo Camera (HRSC) on board ESA’s Mars Express orbiter show the rare moment of the Martian moon Deimos passing...

These images shows Jupiter’s icy moons Ganymede and Europa with Jupiter in the background. Image credit: ESO / King & Fletcher / NASA / ESA / A. Simon, NASA’s Goddard Space Flight Center / M.H. Wong, University of California, Berkeley / OPAL Team.

SPHERE Helps Determine Surface Compositions of Europa and Ganymede

Oct 10, 2022 by Natali Anderson

Astronomers using the Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE) instrument on ESO’s Very Large Telescope have imaged Jupiter’s...

An artist’s rendering of Jupiter with rings that rival Saturn’s. Image credit: Stephen Kane / University of California, Riverside.

Study: Massive Galilean Moons Prevented Formation of Giant Ring System around Jupiter

Jul 21, 2022 by News Staff

Planetary rings are often speculated as being a relatively common attribute of giant planets, partly based on their prevalence within the Solar System....

This image of Ganymede was captured by NASA’s Juno mission during a close flyby in June 2021. The enhanced-color version of the image was created by citizen scientist Thomas Thomopoulos. Image credit: NASA / JPL-Caltech / SwRI / MSSS / Thomas Thomopoulos.

Juno Spots Dark-Rayed Crater on Ganymede

Feb 16, 2022 by Enrico de Lazaro

A new image from the JunoCam instrument aboard NASA’s Juno spacecraft shows a large crater on Ganymede, the Jupiter’s largest moon. This image of Ganymede...

Juno Records ‘Sounds’ of Jupiter’s Moon Ganymede

Dec 20, 2021 by News Staff

The magnetosphere of Ganymede, the Jupiter’s largest moon, is a source of electric and magnetic radio emissions, which have been monitored by the Waves...

This infrared view of Ganymede was obtained by the JIRAM instrument aboard NASA’s Juno spacecraft during the July 20, 2021 flyby. Image credit: NASA / JPL-Caltech / SwRI / ASI / INAF / JIRAM.

Juno Team Creates Infrared Map of Ganymede

Aug 9, 2021 by News Staff

Using data from the Jovian Infrared Auroral Mapper (JIRAM) instrument onboard NASA’s Juno spacecraft, researchers have produced a new infrared map of...

Roth et al. reveal the first evidence for water vapor in the atmosphere of Ganymede, the result of the thermal escape of water vapor from the moon’s icy surface. Image credit: NASA / ESA / Hubble / J. daSilva.

Hubble Detects Water Vapor in Atmosphere of Ganymede

Jul 26, 2021 by News Staff

Jupiter’s icy satellite Ganymede is the largest moon in the Solar System. Water ice on its surface is frozen solid in frigid temperatures as low as minus...

NASA’s Juno Orbiter Completes Close Flyby of Ganymede

Jun 9, 2021 by News Staff

Juno’s June 7, 2021 flyby of Ganymede is the closest a spacecraft has come to Jupiter’s largest moon since NASA’s Galileo spacecraft made its close...

Hay et al for the first time investigate moon-moon tides in Jupiter’s Galilean moons and show that they can cause significant heating through the excitation of high-frequency resonant tidal waves in their subsurface oceans. Image credit: Galileo Project / Voyager Project / NASA’s Jet Propulsion Laboratory.

Galilean Moons of Jupiter Could Be Warming Each Other

Sep 11, 2020 by News Staff

In a process called tidal heating, gravitational push and pull from Jupiter’s Galilean moons — Europa, Ganymede, Io and Callisto — and the...

These five infrared images from the JIRAM instrument aboard NASA’s Juno spacecraft provide the first infrared mapping of Ganymede’s northern frontier. The images were taken every 20 minutes, beginning at time of closest approach (far left) on December 26, 2019, when the orbiter was about 62,000 miles (100,000 km) from Ganymede. Image credit: NASA / JPL-Caltech / SwRI / ASI / INAF / JIRAM.

Juno Sees North Pole of Ganymede in Infrared Light

Jul 25, 2020 by News Staff

The Jovian Infrared Auroral Mapper (JIRAM) instrument onboard NASA’s Juno spacecraft has captured the first infrared images of the north pole of Ganymede,...

Ganymede, larger than even Mercury and Pluto, has an icy surface speckled with bright young craters overlying a mixture of older, darker, more cratered terrain laced with grooves and ridges; the large circular feature on the upper right, called Galileo Regio, is an ancient region of unknown origin; Ganymede is thought to have an ocean layer that contains more water than Earth and might contain life; like Earth’s Moon, Ganymede keeps the same face towards its central planet, in this case Jupiter; this image was taken about 20 years ago by NASA’s Galileo probe, which ended its mission by diving into Jupiter’s atmosphere in 2003; currently, NASA’s Juno spacecraft orbits Jupiter and is studying the giant planet’s internal structure, among many other attributes. Image credit: NASA / JPL / Galileo probe.

Planetary Researchers Find Evidence of Ancient Strike-Slip Tectonics on Ganymede

Oct 12, 2018 by News Staff

A new study, published in the journal Icarus, reveals Ganymede — the largest and most massive moon of Jupiter and in the Solar System — appears...

Juno Images Show Unusual ‘Footprint’ of Io and Ganymede on Jupiter’s Aurorae

Jul 6, 2018 by News Staff

High-resolution infrared images from the Jovian Infrared Auroral Mapper (JIRAM) on NASA’s Juno spacecraft show that, rather than casting one ‘shadow’...