This view of Jupiter’s moon Io was captured by NASA’s Galileo spacecraft. Slightly larger than Earth’s moon, Io is the most volcanically active body in the solar system. Credit: NASA/JPL/University of.
Jupiter Moons - Callisto discovered by Galileo Galilei in 1610 using a telescope. It is thought to have oceans of liquid water beneath its crust. about the size of Mercury, is the largest moon in the solar system. It is more heavily cratered than any
This object is a billowing tower of cold gas and dust rising from a stellar nursery called the Eagle Nebula. The Eagle nebula is giving birth to stars, light-years distant from us, the soaring tower is light-years or about 90 trillion kilometers tall.