Hubble and Chandra Unveil Mysteries Concerning Dark Matter

From HubbleSite: “This collage shows images of six different galaxy clusters taken with NASA’s Hubble Space Telescope and Chandra X-ray Observatory. The clusters were observed in a study of how dark matter in clusters of galaxies behaves when the clusters collide. Seventy-two large cluster collisions were studied in total. Using visible-light images from Hubble, […]

Hubble Shows Evidence of Large Underground Ocean on Ganymede

From HubbleSite: “NASA’s Hubble Space Telescope observed a pair of auroral belts encircling the Jovian moon Ganymede. The belts were observed in ultraviolet light by the Space Telescope Imaging Spectrograph and are colored blue in this illustration. They are overlaid on a visible-light image of Ganymede taken by NASA’s Galileo orbiter. The locations of […]

Water on Vesta? Gullies Suggest Wet Debris Flows in the Past, Study Finds

Image of curved gullies and fan-shaped deposits in Cornelia crater on Vesta. Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

The Dawn spacecraft is now very close to the dwarf planet Ceres, but there are some interesting new findings from its previous visit to the asteroid Vesta. Curved gullies on its surface suggest that small amounts of water may […]

ESA's JUICE Mission Receives Approval to Advance Toward Implementation

Artist’s concept of the JUpiter ICy moons Explorer mission, or JUICE, which is scheduled for launch in 2022. The mission recently passed a major milestone in its development, by being granted approval by ESA to advance towards implementation. Image Credit: ESA/AOES

The detailed study of Jupiter’s fascinating large, icy moons got a step closer […]

Saturn's Moon Mimas May Have an Underground Ocean—or Just a Weird Core

Mimas, a cold, icy, and tiny moon of Saturn, may have a liquid water ocean below its heavily cratered surface. Photo Credit: NASA/JPL/SSI

It wasn’t that long ago that Earth was thought to be the only place in the Solar System capable of having liquid water oceans, but now we know of several moons that […]

Solar System's Largest Moon Ganymede May Have 'Club Sandwich' Oceans

Illustration depicting the “club sandwich” layers of oceans and ice in Ganymede’s interior. Image Credit: NASA / JPL-Caltech

Europa and Enceladus, for good reason, have captured the attention and imagination of those searching for evidence of life elsewhere in our Solar System. Both moons are now thought to have subsurface oceans with conditions where […]

Missions to the Icy Moons

It turns out that the moons of the outer solar system are shaping up to be some of the most dynamic destinations in terms of planetary exploration. Image Credit: NASA / JPL

Far from the warm inner regions of the solar system, in orbit around the great gas giants are moons full of surprises. […]

Scientists to Io: Volcanoes are in the Wrong Spot

Video courtesy of NASA

Jupiter’s moon Io is the most volcanically active world in the solar system, with hundreds of volcanoes, some erupting lava fountains up to 250 miles high (about 400 kilometers). However, concentrations of volcanic activity are significantly displaced from where they are expected to be, based […]

Alien Life Around Distant Stars? Study of Outer Solar System's Moons Suggests We Look Closer

Recent reports have shown that Europa could be a bastion for life in the outer solar system. Image Credit: NASA

While there have been more than a few predictions made as to when we will discover life on a planet orbiting some far-flung star, what is only occasionally predicted is whether or not we […]

NASA to Provide European Space Agency Ingredients for its JUICE

NASA will be contributing to the European Space Agency’s JUICE mission to the icy worlds of Jupiter. Image Credit: ESA

The European Space Agency’s (ESA) Jupiter Icy Moons Explorer (JUICE) mission will gain three key contributions from NASA. The mission, slated to launch in 2022, is set to explore the gas giant as well […]