NASA ScienceCasts
NASA Science news is too exciting for plain text. Educational "ScienceCast" videos are fun, lively, entertaining--anything but plain. Join us for a new episode weekly as we look into the science behind discoveries on Earth, the Solar System, and beyond...
Visit Show Website http://sciencecasts.nasa.gov/Recently Aired
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ScienceCast 32: 600 Mysteries in the Night Sky
The Fermi Gamma-ray Space Telescope recently produced a map of ...
The Fermi Gamma-ray Space Telescope recently produced a map of the night sky. Out of 1873 new sources, nearly 600 were complete mysteries. In this week's ScienceCast, researchers speculate on the nature of the mystery objects.
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ScienceCast 31: Draconid Meteor Outburst
Forecasters say Earth is heading for a stream of dust ...
Forecasters say Earth is heading for a stream of dust from Comet 21P/Giacobini-Zinner. A close encounter with the comet's fragile debris could spark a meteor outburst over parts of our planet on October 8th.
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ScienceCast 30: The Strange Attraction of Gale Crater
NASA's newest rover Curiosity is getting ready to leave Earth. ...
NASA's newest rover Curiosity is getting ready to leave Earth. It's destination: Gale crater on Mars. Today's story from Science@NASA explains the attraction of this Martian crater with a strangely-sculpted mountain the middle.
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ScienceCast 29: Did Earth Have Two Moons?
Did our planet once have two moons? Some researchers say ...
Did our planet once have two moons? Some researchers say so. Moreover, the missing satellite might still be up there--splattered across the far side of the Moon. NASA's GRAIL mission could help confirm or refute the "two moon" hypothesis.
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ScienceCast 28: The Secret Lives of Solar Flares
Researchers have just discovered that solar flares have been keeping ...
Researchers have just discovered that solar flares have been keeping a secret--and it's a big one.
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ScienceCast 27: Cool Stars
Stars as cold as the human body? Believe it. A ...
Stars as cold as the human body? Believe it. A NASA spacecraft has discovered a half-dozen "Y Dwarfs" with atmospheric temperatures as low as 80 F.
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ScienceCast 26: Visit to Pluto
Pluto is a world of mystery waiting to be visited ...
Pluto is a world of mystery waiting to be visited for the 1st time. NASA's New Horizons probe is racing across the solar system for a close encounter that could alter what researchers "know" about Pluto and other small worlds.
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ScienceCast 25: Breath of Fresh Air
The same kind of oxygen humans breath on Earth has ...
The same kind of oxygen humans breath on Earth has been found in deep space. It's a breath of fresh air for astronomers who have been searching for cosmic "O2" until now without success.
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ScienceCast 24: Bright Perseids Photographed
On August 13th, space station astronaut Ron Garan photographed a ...
On August 13th, space station astronaut Ron Garan photographed a centimeter-sized chunk of comet debris disintegrating in Earth's atmosphere. His rare photo of a meteor from Earth orbit is a must-see.
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ScienceCast 23: Dawn's Smooth Move
NASA's Dawn spacecraft doesn't do things like other missions. In ...
NASA's Dawn spacecraft doesn't do things like other missions. In July it slipped into orbit around asteroid Vesta using a smooth move that made mission planners want to get up and dance.