PERSEID FIREBALLS: One meteor shower produces more fireballs than any other–and it’s underway now. Earth is entering a stream of debris from Comet Swift-Tuttle, source of the annual Perseid meteor shower. NASA all-sky cameras are detecting an increasing number of Perseid fireballs as the shower’s peak approaches on Aug. 12-13. Check http://spaceweather.com for updates and more information.
Look to the northeastern sky…
