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Eclipse Over America

Wed. Aug 23, 8:00 PM
WGBH 2

Eclipse Over America

Thu. Aug 24, 1:00 AM
WGBX 44

Eclipse Over America

Thu. Aug 24, 4:00 AM
WGBH 2

The Fabric of the Cosmos: The Illusion Of Time

Time. We waste it, save it, kill it, make it. The world runs on it. Yet ask physicists what time actually is, and the answer might shock you: They have no idea.

Even more surprising, the deep sense we have of time passing from present to past may be nothing more than an illusion. How can our understanding of something so familiar be so wrong?

In search of answers, Brian Greene takes us on the ultimate time-traveling adventure, hurtling 50 years into the future before stepping into a wormhole to travel back to the past. Along the way, he will reveal a new way of thinking about time in which moments past, present, and future—from the reign of T. rex to the birth of your great-great-grandchildren—exist all at once.

This journey will bring us all the way back to the Big Bang, where physicists think the ultimate secrets of time may be hidden. You'll never look at your wristwatch the same way again.

Video only available in WGBH Passport

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PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA programs demystify science and technology, and highlight the people involved in scientific pursuits.

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NOVA Showtimes

Eclipse Over America Wed. Aug 23 at 8:00 PM WGBH 2
Eclipse Over America Thu. Aug 24 at 1:00 AM WGBX 44
Eclipse Over America Thu. Aug 24 at 4:00 AM WGBH 2
Eclipse Over America Thu. Aug 24 at 7:00 PM WGBH WORLD
Eclipse Over America Fri. Aug 25 at 12:00 AM WGBH WORLD
Eclipse Over America Fri. Aug 25 at 3:00 AM WGBX 44
Eclipse Over America Fri. Aug 25 at 8:00 AM WGBH WORLD
Eclipse Over America Fri. Aug 25 at 2:00 PM WGBH WORLD
Eclipse Over America Fri. Aug 25 at 10:00 PM WGBX 44
Eclipse Over America Sat. Aug 26 at 1:00 AM WGBH 2
Eclipse Over America Sat. Aug 26 at 12:30 PM WGBX 44
Eclipse Over America Sat. Aug 26 at 8:00 PM WGBX 44
Eclipse Over America Sun. Aug 27 at 1:00 AM WGBX 44
Eclipse Over America Sun. Aug 27 at 4:00 AM WGBH 2
Eclipse Over America Sun. Aug 27 at 5:00 PM WGBH 2
Zeppelin Terror Attack Wed. Aug 30 at 9:00 PM WGBH 2
Zeppelin Terror Attack Thu. Aug 31 at 2:00 AM WGBX 44
Zeppelin Terror Attack Thu. Aug 31 at 5:00 AM WGBH 2
Zeppelin Terror Attack Thu. Aug 31 at 1:00 PM WGBX 44
Zeppelin Terror Attack Thu. Aug 31 at 7:00 PM WGBH WORLD
Zeppelin Terror Attack Fri. Sep 1 at 12:00 AM WGBH WORLD
Zeppelin Terror Attack Fri. Sep 1 at 4:00 AM WGBX 44
Zeppelin Terror Attack Fri. Sep 1 at 8:00 AM WGBH WORLD
Zeppelin Terror Attack Fri. Sep 1 at 2:00 PM WGBH WORLD
Zeppelin Terror Attack Sat. Sep 2 at 8:00 PM WGBX 44
Zeppelin Terror Attack Sun. Sep 3 at 1:00 AM WGBX 44
Zeppelin Terror Attack Sun. Sep 3 at 4:00 AM WGBH 2
Zeppelin Terror Attack Sun. Sep 3 at 2:30 PM WGBH 2
Killer Landslides Wed. Sep 6 at 9:00 PM WGBH 2
Killer Landslides Thu. Sep 7 at 2:00 AM WGBX 44
Killer Landslides Thu. Sep 7 at 5:00 AM WGBH 2
Killer Landslides Thu. Sep 7 at 1:00 PM WGBX 44
Killer Landslides Thu. Sep 7 at 7:00 PM WGBH WORLD
Killer Landslides Fri. Sep 8 at 12:00 AM WGBH WORLD
Killer Landslides Fri. Sep 8 at 4:00 AM WGBX 44
Killer Landslides Fri. Sep 8 at 8:00 AM WGBH WORLD
Killer Landslides Fri. Sep 8 at 2:00 PM WGBH WORLD
Killer Landslides Sat. Sep 9 at 8:00 PM WGBX 44
Killer Landslides Sun. Sep 10 at 1:00 AM WGBX 44
Killer Landslides Sun. Sep 10 at 4:00 AM WGBH 2
Death Dive to Saturn Wed. Sep 13 at 9:00 PM WGBH 2
Death Dive to Saturn Thu. Sep 14 at 2:00 AM WGBX 44
Death Dive to Saturn Thu. Sep 14 at 5:00 AM WGBH 2
Death Dive to Saturn Thu. Sep 14 at 1:00 PM WGBX 44
Death Dive to Saturn Thu. Sep 14 at 7:00 PM WGBH WORLD
Death Dive to Saturn Fri. Sep 15 at 12:00 AM WGBH WORLD
Death Dive to Saturn Fri. Sep 15 at 5:00 AM WGBX 44
Death Dive to Saturn Fri. Sep 15 at 8:00 AM WGBH WORLD
Death Dive to Saturn Fri. Sep 15 at 2:00 PM WGBH WORLD
Death Dive to Saturn Sat. Sep 16 at 8:00 PM WGBX 44

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