
The Most Important Document in the History of Astronomy
Clip: Season 4 Episode 5 | 3m 48sVideo has Closed Captions
A glass plate from the Carnegie Observatories archives helped discover the universe.
The Carnegie Observatories archives holds about 250,000 glass plates in its vault, but there is one that stands out in its holdings: the glass plate that helped humankind discover the universe. Walk with host Nathan Masters; John Mulchaey, Director of Mt. Wilson Observatory and astronomer Allison Strom and learn why this unassuming plate holds the key to our place in the universe.
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Lost LA is a local public television program presented by PBS SoCal

The Most Important Document in the History of Astronomy
Clip: Season 4 Episode 5 | 3m 48sVideo has Closed Captions
The Carnegie Observatories archives holds about 250,000 glass plates in its vault, but there is one that stands out in its holdings: the glass plate that helped humankind discover the universe. Walk with host Nathan Masters; John Mulchaey, Director of Mt. Wilson Observatory and astronomer Allison Strom and learn why this unassuming plate holds the key to our place in the universe.
Problems with Closed Captions? Closed Captioning Feedback
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Learn Moreabout PBS online sponsorshipDiscovering the Universe Preview
Video has Closed Captions
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Learn Moreabout PBS online sponsorshipLost LA is a local public television program presented by PBS SoCal