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PBS NewsHour

Light Pollution- Where Did All the Stars Go?

5:24

Hari Sreenivasan and Debra Elmegreen, professor of astronomy at Vassar College and president of the American Astronomical Society talk about light pollution and the effect it has on star-gazers and our lives.

Episodes of PBS NewsHour44

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Previews of PBS NewsHour3

PBS NewsHour

State of the Union 2016

PBS NEWSHOUR offers live coverage of President Obama's speech and the Republican response.

0:20

PBS NewsHour

PBS NewsHour Weekend

Premieres Saturday, September 7, 2013 at 6 p.m. ET.

0:30

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