Research and development is underway to create robots that can hunt for signs of life in the vast oceans that exist under the ...

On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he ...

Callisto may not make headlines like Io or Europa, but its beauty is unmatched. See this mysterious moon as you’ve never seen ...

📅 Today in History: In 1610, Italian astronomer Galileo Galilei, through improvements he made on a homemade telescope, first observed Jupiter’s four Galilean moons: Ganymede, Callisto, Io and Europa.

If conditions are clear, anyone with a pair of binoculars or a telescope may even be able to pick out details, such as Jupiter’s four largest moons — Ganymede, Callisto, Io and Europa.

From a total lunar eclipse to meteor showers to space probes, 2025 will be stellar for celestial viewing. Those and more will ...

Last year saw the launch of a European probe called the Jupiter Icy Moons Explorer (JUICE). It will likewise examine Europa, as well as Callisto and Ganymede, two other moons that are also thought ...

NASA develops miniature underwater robot to explore Jupiters icy moons NASAs innovation focuses on a compact submersible for ...

Jupiter's volcanic moon Io doesn't appear to ... but smaller gravitational tides from fellow moons Europa, Ganymede and Callisto, it means that a huge amount of tidal energy is injected into ...

This shows the view at 9 p.m. CST. Watching the dance of the four brightest of Jupiter's 95 known moons is a lot of fun, too. Io, Europa, Ganymede and Callisto change position night after night ...

From animal journeys across oceans to the discovery of dozens of new species in the deep sea, these stories wowed us ...

Ganymede and Callisto, it means that a huge amount of tidal energy is injected into Io's interior, but is this enough energy to keep a layer of the mantle completely melted? Juno arrived at Jupiter in ...