If you've never seen a flying horse, take a look for it the next clear autumn night. It's not a literal winged equine, but the figment of the wonderful imagination of ancient astronomers who created a ...

A few hours after darkness falls during November, the unquestioned landmark of the autumn night sky occupies a commanding position high in the south: the flying horse Pegasus. The horse's body is ...

Of course, the horse is Pegasus, flying in the east into the late summer sky. The Square of Pegasus is an almost perfect square, or diamond, of second-magnitude stars as bright as those of the Big ...