After studying years of old Hubble space observations, a scientist just discovered all-new signs of water vapor lingering on Europa. When it comes to our Solar System, there are certain destinations that tend to take up the spotlight. Mars is the focal point for many people right now, there’s a reemerging interest in the Moon, and everything else tends to take a backseat in mainstream conversations. One location that’s quickly rising in interest, however, is Europa.
Europa is one of four Galilean moons orbiting Jupiter. It’s the sixth-largest known moon in the Solar System, has a surface covered in ice, and is widely believed to have vast liquid oceans beneath its harsh