Astronomy on MSN2d
The Sky This Week from March 21 to 28: Galilean moon action
Plus: Observe two stunning spirals, see Venus reappear as a morning star, and enjoy the Last Quarter Moon in the sky this ...
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Is Callisto, Jupiter’s moon with the most craters and third largest in the Solar System, an oceanic world with life?
If you find Jupiter, you’ll likely see four small dots to the side of the gas giant: they are the Galilean moons, four of the 95 natural satellites around the Solar System’s largest planet.
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Is Europa alive? A laser could detect biosignatures from space
Europa is the sixth largest satellite in our Solar System and the smallest of Jupiter’s four Galilean moons. Discovered by ...
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The small moons of Jupiter
Saturn, Jupiter’s outer neighbour, currently has 83 known satellites. The four larger moons mentioned above, also known as the 'Galilean moons', account for 99.997 percent of the total mass of Jupiter ...
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Planet Jupiter, explained
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 ...
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NASA Spacecraft Whipping Around Mars to Slingshot Itself Toward Jupiter's Mysterious Moon
The goal is to reach Europa, the smallest of the planet's four Galilean moons, in April 2030, as part of the first mission specifically designed to study the under 2,000-mile-across space rock.