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How to watch the eclipse without burning your eyes
Looking at the sun without eclipse glasses, even when 99% of the Sun is covered by the Moon, can cause retinal damage in your eye. Here’s the science behind why, and how you can protect your eyes.
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53:31
Who created the Nazca lines and why? New clues to one of the greatest ancient enigmas.
53:43
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.
53:16
Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.
53:30
In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate
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53:17
Intrepid paleontologists discover that dinosaurs thrived in the Arctic’s cold and dark.
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53:28
Take a tasty look at insect foods that could benefit our health and our warming planet.
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53:28
Join the hunt for the universe’s most common—yet most elusive and baffling—particle.
53:36
As state-legalized cannabis spreads, NOVA explores its little-known risks and benefits.
