Astronomers from the Catalina Sky Survey say they have detected a rare mini-moon around Earth. Sadly, we shouldn’t get too attached to our new natural satellite, as the rock—if that’s indeed what it is—will only hang around for a few months.
The equatorial dunes on Saturn’s moon Titan are among the most dramatic surface features in the Solar System, but scientists aren’t exactly sure how they formed. New experimental evidence suggests the dunes arose as a result of cosmic rays hitting Titan’s surface ice.
Special thanks to Darlene Lim of NASA’s Ames Research Centre, Mike Malaska of NASA’s Jet Propulsion Laboratory, Jill McDermott of Lehigh University, Kevin Raskoff of Monterey Peninsula College and Samantha Trumbo of Caltech for contributing their expertise to this comic.