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At that time, no astronomer
understood why bright lines would appear in the
spectrum of a star
understood why bright lines would appear in the
spectrum of a star
Full Transcript
00:00:01.000 --> 00:00:04.264
At that time, no astronomer
understood why bright lines
00:00:04.438 --> 00:00:06.048
would appear in the
spectrum of a star.
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Movie Summary
"Cosmos: A Spacetime Odyssey" returns for a second season. Ann Druyan, original creative collaborator to Carl Sagan, serves as executive producer.