NASA announced that it has evidence that Jupiter’s moon Ganymede, the largest moon in our solar system, has a vast ocean lurking underneath its icy crust. WSJ's Monika Auger reports.

The field of view is 1.3 degrees and JANUS can resolve a tennis ball from a distance of one kilometre. A spatial resolution of up to 2.4 metres per pixel will be achieved in the closest orbit around ...

Enjoy dark skies for evening observing, then catch a meteor shower and a planetary conjunction in the morning sky this week.

These pinpricks of light are actually Jupiter's four largest moons, now known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Many of these celestial orbs are as remarkable as Jupiter ...

Gigantic Asteroid Impact Shifted the Axis of Solar System's Biggest Moon Sep. 3, 2024 — Around 4 billion years ago, an asteroid hit the Jupiter moon Ganymede. Now, a researcher realized that the ...

People around the world will have a chance this weekend to catch what could be the year’s most stunning view of the ... such as Jupiter’s four largest moons — Ganymede, Callisto, Io and ...

MAJIS can be operated in either push-broom or scan mode, depending on the requirements of different mission phases. The spatial resolution is up to 25 metres on Ganymede and about 100 kilometres on ...

Other moons of Jupiter, like Europa and Ganymede, have been considered far more likely candidates. That’s largely down to the fact that those moons play host to subsurface oceans. Given that we ...