Space junk is going to be a problem for Vera Rubin

The Vera Rubin Observatory (VRO) is different to other large telescopes, and that difference makes it more vulnerable to space junk. Other telescopes, like the Giant Magellan Telescope and the European Extremely Large Telescope, focus on distant objects. But the VRO's job is to repeatedly image the entire available night sky for 10 years, spotting transients and variable objects.