Dione

Scientists are getting a final look at Saturn’s icy moon Dione for decades to come with fresh imagery streaming down this week from NASA’s Cassini spacecraft, which made its last close flyby of the Texas-sized satellite Monday.

Saturn’s moon Dione received a fleeting visitor this week, when NASA’s Cassini spacecraft whizzed by to image bizarre streaks thought to be canyons with ice walls up to 100 stories tall.