Jupiter, the largest planet in our Solar System, is preparing to give us a big show on April 11th, as it flexes its muscles and forces one of its largest moons out of the spotlight.

Join Slooh to watch LIVE as one of Jupiter’s Gallilean moons disappears behind the planet through our Canary Islands Observatory. Slooh Astronomers Paul Cox and Bob Berman will be on hand to offer fascinating insights into the largest planet in our Solar System, and a Moon that could one day possibly support human life.

Callisto is not only the second largest of Jupiter’s dozens of moons, it is also the third largest moon in the entire Solar System, and nearly the exactly same size as the planet Mercury. The moon is also commonly seen as a possible future human outpost, since it’s size and terrain make it much more hospitable to human life than the gassy Jupiter. And if that isn’t enough intrigue for you, Callisto is also the home to a sub-terranian sea that some believe has the potential to support extra-terrestrial life.

In Greek Mythology, Callisto was one of the many women embroiled in an affair with the king of Olympus, Zeus (known, in Roman mythology, as Jupiter). According to the story, Callisto was a nymph of the goddess Artemis, and had taken a vow of chastity. Zeus, undeterred by such vows, disguised himself as Artemis, in order to lure Callisto into his embrace. The nymph was immediately turned into a bear as punishment for breaking her vow to the goddess.

Join us on April 11th to learn more about these two fascinating bodies, and to watch live as one is snuffed out by the other for a brief time. Then, stick around, because we’ll be able to watch live as the moon re-emerges from the other side of the planet a few hours later.