Add Yahoo as a preferred source to see more of our stories on Google. Janna Levin, professor of physics and astronomy at Barnard College, joins CBS News to discuss Wednesday's total solar eclipse.
Eclipses in the modern day are an exciting, media-obsessed event. Whether a lunar eclipse, where the earth moves between the sun and the moon, or a solar eclipse where the moon moves between the sun ...
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Astronomy professor breaks down how eclipses work: "We get the best eclipses in the solar system"
Janna Levin, professor of physics and astronomy at Barnard College, joins CBS News to discuss Wednesday's total solar eclipse. Should you shut down your PC every night? Here's what it actually does to ...
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