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Perseid Fireballs
New research from NASA's Meteoroid Environment Office identifies the Perseids as the "fireball champion" of annual meteor showers. This year's (2013) Perseid display peaks on August 12th and 13th.
Perseid Fireballs
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Perseid Fireballs
Noctilucent Clouds Get an Early Start
Noctilucent Clouds Get an Early Start
Dr. Jim Green Discusses NEOs
Dr. Jim Green Discusses NEOs
ScienceCasts: What Exploded Over Russia?
ScienceCasts: What Exploded Over Russia?
DNA Building Blocks Can Be Made in Space
DNA Building Blocks Can Be Made in Space
NASA ScienceCast: Meteors from Halley's Comet
NASA ScienceCast: Meteors from Halley's Comet
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