A Way to Directly Measure Hawking Radiation

Stephen Hawking has made a compelling case that black holes eventually evaporate, but the time scales are beyond our ability to detect it. A new paper suggests that primordial black holes passing through the Solar System could be releasing positron emissions that would be detectable when they pass up to 10 AU from Earth. If found, they would confirm Hawking’s theories and provide an explanation for dark matter. Unfortunately, our best technology isn’t quite sensitive enough.