Some problems grow quietly, almost politely, until they stop being ignorable. Space junk is one of those. It does not announce itself from the ground, yet it circles above us every day, passing satellites, brushing past spacecraft, waiting for a mistake.
Over time, the clutter has built up. Old rocket shells, broken parts, forgotten machines. Now and then, scientists step back and ask whether the usual tools are enough. At the University of Colorado Boulder, one group began thinking less about grabbing debris and more about nudging it. Their idea sounds familiar, even playful, but the work behind it is careful and serious. A tractor beam, not from fiction, but shaped by physics, lab testing, and a concern for what comes next.
