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Ask an Astronomer
By NASA's Spitzer Science Center / IPAC / NASA / CaltechNatural Sciences
Ask an Astronomer episodes
- "What is a redshift?" (Ask an Astronomer)'Ask an Astronomer' uses an astronomer, a flying saucer, and a cow to help explain this difficult astronomical concept in simple terms.0 min
- What Is a Redshift?'Ask an Astronomer' uses an astronomer, a flying saucer, and a cow to help explain this difficult astronomical concept in simple terms.0 min
- "Do the stars really move?" (Ask an Astronomer)The answer to this 'Ask an Astronomer' question may surprise you!0 min
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- "Why do we see spiral arms in some galaxies?" (Ask an Astronomer)'Ask an Astronomer' explains the morphology of one of the most common types of galaxy.0 min
- Why Do We See Spiral Arms in Some Galaxies?'Ask an Astronomer' explains the morphology of one of the most common types of galaxy.0 min
- "Why are solar eclipses only visible in some places?" (AaA)This 'Ask an Astronomer' episode explains eclipses of the sun and why they can't be seen everywhere.0 min
- "Why does the moon look like it changes?" (Ask an Astron.)Phases of the Moon are clearly explained in this 'Ask an Astronomer' episode.0 min
- "What causes an eclipse of the moon?" (Ask an Astronomer)This 'Ask an Astronomer' episode explains lunar eclipses.0 min
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About Ask an Astronomer
From the publisher's feed
Real NASA astronomers answer questions about the exciting science of astronomy.