At this moment, millions of small pieces of space junk are flying around the earth. For most people, that is not an immediate concern, but space junk poses a collision risk to astronauts and satellites. Researchers have been puzzled over how to collect the more than 500,000 pieces of space debris, most of which are smaller than a softball. Now a company in Singapore is working on a prototype that will use glue to trap pieces of debris. The Singapore-based company, Astroscale, is incorporating one of the few adhesives that does work in space into a two-part satellite designed to capture and dispose of space debris. The satellite is composed of a carrier that contains a “catcher.” The carrier identifies a piece of debris and then releases the catcher, which sticks to the debris and engages a solid fuel thruster to slow the debris’ velocity. At lower velocity, the debris will fall out of orbit and be harmlessly burned up in the atmosphere.