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How do people use the sun in everyday life -- drying paintings, washing, ripening fruit and providing warmth. Sun safety issues are reinforced, and different materials absorb heat from the sun. The Sun concentrates on how night and day affect people and animals. In simple experiments children explore where the sun goes at nighttime and why it appears so small in the sky.
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From blackest night through time-lapse to a stunning dawn. Reaching out from our sun are tongues of fire that lash 100,000 miles high We plunge through a mysterious sunspot deep into a nuclear furnace.
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Our world seems a peaceful place. But science reveals that it's often been hit by massive fireballs from space. Could one of them have wiped out the dinosaurs? Could the next one wipe out humanity?
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From planet earth to the dawn of time, a voyage through the eyes of the Hubble Space Telescope. It's a trip that spans more than space, crossing unimaginable time to the very start of the universe.
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A journey through time to the future and the farthest reaches of space. How many galaxies are there and what will be their fate? Graphics reveal the destiny of the universe could be a "Big Crunch."
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Over a thousand years ago, the stellar explosion known as supernova
SN 1006 was observed. It was brighter than Venus, and visible during
the day for weeks. The brightest supernova ever recorded on Earth,
this spectacular light show was documented all around the world. An-
cient observers were treated to this celestial firework display without
understanding its cause.
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