Who’s that wonderful girl? Could she be any cuter? 🎵⁣ ⁣ June 30 is International Asteroid Day, a day to raise awareness about asteroids and how we study them. While we love all asteroids, there’s a limit to how many photos we can add to one post, so let’s visit just one in celebration of this special day.⁣ ⁣ This is Asteroid Ida. Ida is about 35 miles (56 kilometers) long and, as you may have noticed, has its own satellite: a moon. That’s right: some asteroids have their own moon – or two! This picture, taken by our Galileo spacecraft on Aug. 28, 1993, was the first conclusive evidence that natural satellites of asteroids exist.⁣ ⁣ Like most asteroids, Ida and its moon, named Dactyl, reside in the main asteroid belt between Jupiter and Mars. Ida is one of the Koronis family of asteroids, which are thought to be the debris of an ancient collision between two larger objects. It is covered in craters and a deep layer of regolith (pulverized rock).⁣ ⁣ Ida was named by Moriz von Kuffne...