Halley’s Comet won’t return until 2061, but its fragments will streak across the sky at 66 kilometers per second; find out when (and how) to observe the peak of the Orionid meteor shower in Porto
After the modest Draconids, fall has one of its most fascinating astronomical events in store for us: the Orionid meteor shower. Active through November 7, it is expected to peak on the night of October 2...