The dwarf planet Ceres may be something of a cosmic dartboard: Projectiles that slam into it tend to stick. That’s the conclusion scientists reached after using NASA’s Vertical Gun Range, a cannon with a 14-foot barrel that can launch projectiles at up to 16,000 miles per hour. They fired pebble-sized bits of basalt and aluminum… Read more

In addition to the strange bright spots in a large crater on Ceres, there are also odd bright streaks down the sides of a pyramid-shaped mountain which rises higher than Alaska’s 20,000-foot Mt. McKinley, NASA shows in the latest video from the Dawn mission. Dawn science team member Paul Schenk, a geologist at the Lunar… Read more