Transcript: Astronomers have been hoping and expecting to find planets around Sun-like stars, so it was a great surprise when the first extrasolar planets were detected around a pulsar. PSR 1257+12 is a dead star, yet it has two Earth-like objects moving in tight orbits around it. The detection of these planets was aided by the high precision radio timing measurements that are possible for a radio emitting pulsar. Pulsars form from the death of a massive star, a supernova, and it is very unlikely that a planetary system could survive such an explosion. So this system did not form in the standard way that our planetary system did. Perhaps these planets formed from the aggregation of debris left over from the supernova. Either way, this exotic and bizarre system is unlikely to tell us much about the formation process of our own solar system.