Dark matter could be hiding in tiny black holes left over from the universe's birth. No one has ever seen them, but if a hole weighing as much as an asteroid flies past a pulsar, its 'ticking' will skip a fraction of a second. And when it smashes into an icy chunk beyond Pluto, the hole will burst into light like a match. This idea opens a new hunt for the invisible.
🎯 A black hole with the mass of an asteroid is compressed to smaller than an atomic nucleus—it would pierce through Earth without touching a single atom.
🎬 In Larry Niven's story 'The Hole Man', a microscopic black hole falls on Mars—much like in the real hunt for hidden things.