Tonight might bring the best chance to view the gamma Delphinid meteor shower in the United States since 1930, according to NASA. Here, astronomers watch the night sky for the Perseid meteor shower, in a file photo. Petar Petrov/AP hide caption

toggle caption Petar Petrov/AP

A composite of Lyrids over Huntsville, Ala., in 2009. This year, the meteor shower will hit its peak before dawn Sunday morning. Danielle Moser/MSFC/NASA hide caption

toggle caption Danielle Moser/MSFC/NASA

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