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NOVA
Decoding the Universe: Cosmos Preview
How big is the universe? Will it ever end? Why is so much of it made of mysterious dark matter and energy? See how mind-bending discoveries over the past 50 years have revolutionized our understanding of the universe.
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Season
![NOVA Season 51](https://kcet.brightspotcdn.com/dims4/default/a45e17b/2147483647/strip/true/crop/1920x1080+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FNJYJ0BU-asset-mezzanine-16x9-SQ5LDWr.jpg)
53:38
Explore big discoveries that have revolutionized our understanding of the universe.
![Secrets in Your Data](https://kcet.brightspotcdn.com/dims4/default/4d378eb/2147483647/strip/true/crop/3840x2160+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FX30Ln2e-asset-mezzanine-16x9-5XyeRIV.jpg)
53:40
Find out who’s using your data and what you can do about it.
![Great American Eclipse](https://kcet.brightspotcdn.com/dims4/default/5e514da/2147483647/strip/true/crop/3840x2160+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FRMA5pFe-asset-mezzanine-16x9-5hKgmFm.jpg)
53:34
Explore the spectacular cosmic phenomenon of a total solar eclipse.
![A.I. Revolution](https://kcet.brightspotcdn.com/dims4/default/0d67d57/2147483647/strip/true/crop/1920x1080+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2F9ZAetRn-asset-mezzanine-16x9-q13L1tV.jpg)
53:30
Explore the promise and perils of new A.I. technologies.
![Hunt for the Oldest DNA](https://kcet.brightspotcdn.com/dims4/default/8e11ef6/2147483647/strip/true/crop/1920x1080+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FZDGJntJ-asset-mezzanine-16x9-zAVhx7v.jpg)
53:10
Follow the quest to recover DNA millions of years old for the very first time.
![Building the Eiffel Tower](https://kcet.brightspotcdn.com/dims4/default/3c78ac2/2147483647/strip/true/crop/1920x1080+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2Fl5shP7c-asset-mezzanine-16x9-AvfoH4P.jpg)
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53:29
Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.
![Easter Island Origins](https://kcet.brightspotcdn.com/dims4/default/036674d/2147483647/strip/true/crop/1920x1080+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FF80r6qy-asset-mezzanine-16x9-vJqBdDE.jpg)
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53:17
New evidence reveals the real story of Easter Island and the builders of its stone heads.
![When Whales Could Walk](https://kcet.brightspotcdn.com/dims4/default/edb8fcb/2147483647/strip/true/crop/1920x1080+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FJ0pg5Ms-asset-mezzanine-16x9-xJZHyrO.jpg)
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53:31
Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.
![Lee and Liza's Family Tree](https://kcet.brightspotcdn.com/dims4/default/c1f3d7b/2147483647/strip/true/crop/1920x1080+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FN5pje6R-asset-mezzanine-16x9-tm9jAFX.jpg)
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53:31
A family turns to science in their struggle to rediscover a history obscured by slavery.
![The Battle to Beat Malaria](https://kcet.brightspotcdn.com/dims4/default/af1124a/2147483647/strip/true/crop/1920x1080+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2Fs8bGou8-asset-mezzanine-16x9-X7ItYng.jpg)
53:54
Follow the quest to create a lifesaving malaria vaccine.
![Inside China's Tech Boom](https://kcet.brightspotcdn.com/dims4/default/3e4f113/2147483647/strip/true/crop/2160x1215+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FOI2l7mC-asset-mezzanine-16x9-GKJnPxt.jpg)
53:20
The inside story of China’s meteoric rise to the forefront of global innovation.
![Ancient Earth: Humans](https://kcet.brightspotcdn.com/dims4/default/c3c293a/2147483647/strip/true/crop/2160x1215+0+0/resize/1440x810!/quality/90/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2Fqv0VL0E-asset-mezzanine-16x9-y3cXNs4.jpg)
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53:15
How did Earth give rise to humans? See what made our species' existence possible.