Spaceweather.com, 4/21/13
Earth is passing through a stream of debris from ancient Comet Thatcher, source of the annual Lyrid Meteor Shower. Usually the shower is mild (10-20 meteors per hour) but unmapped filaments of dust in the comet's tail sometimes trigger outbursts ten times stronger. Forecasters say the best time to look is during the dark hours before local dawn on Monday, April 22nd.
Link: Spaceweather.com
