The liquid ocean on Jupiter’s moon Europa appears to be completely sealed off from the planet’s surface, which may reduce the ...
Jupiter’s Galilean moons often transit the planet’s disk one at a time — tonight, however, Io and Europa cross the disk together. The two moons even appear to partially overlap as their transits begin ...
A trip of 1.8 billion miles. That’s the journey NASA’s newest astrobiology mission, the Europa Clipper, must undertake to reach Jupiter and its enchanting, ice-coated moon, Europa. Scientists are ...