Secrets of the Sky Tombs
About the Episode
Evidence discovered in the world’s highest tombs reveals ancient rituals and beliefs.
Aired:
01/03/17
| Expires: | Runtime: 28s
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Extras
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What is the Endocannabinoid System?
Cannabinoid receptors, named after cannabis, are found in nearly every organ in the body.3:49 -
Genetically Modifying Mosquitoes to Reduce their Numbers
Mosquitoes can be annoying, but how far would we go to stop them?5:42 -
Unique Adaptations may Explain Bats' Resistance to Viruses
Bats are really effective at dumping heat to keep their body temperatures fairly normal.3:02 -
Lights Flashed in the Sky During Mexico's Latest Earthquake
On September 7, 2021, a magnitude 7.0 earthquake rocked southwest Mexico.4:40 -
A Veteran's Story of Medical Cannabis Use and Arrest
For Black people in America, the war on cannabis is still ongoing.5:34 -
Edible Insects Promo
Take a tasty look at insect foods that could benefit our health and our warming planet.0:29 -
How Wildfires and Ozone Led to Terrible Air Quality
Here’s how poor air quality can lead to serious health effects.6:05 -
Arctic Drift Preview
Join scientists on a daring polar voyage to uncover the Arctic’s climate secrets.0:30 -
Particles Unknown Preview
Join the hunt for the universe’s most common—yet most elusive and baffling—particle.0:30 -
The Cannabis Question Preview
As state-legalized cannabis spreads, NOVA explores its little-known risks and benefits.0:30
