Ancient asteroid 20 times larger than the one that wiped out dinosaurs crashes into Jupiter’s moon Ganymede
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advances and more Jupiter’s moon Ganymede may have shifted on its axis after being hit by a large asteroid about 4 billion years ago, according to a new study. The largest moon in the solar system, Ganymede is… Read More »