How Scientists Developed a Drug to Prevent HIV
Season 49
Episode 11
About the Episode
Here's how scientists developed a once-a-day pill that reduced the risk of sexually transmitted HIV transmission by 99%, a breakthrough that transformed the course of the HIV/AIDS epidemic.
Aired:
| Expires: | Runtime: 3m 05s
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Extras
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You do have some control in how much data you share online.4:02 -
Decoding the Universe: Cosmos Preview
Explore big discoveries that have revolutionized our understanding of the universe.0:30 -
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Dark energy fundamentally shapes our universe and what astronomers know about it might be wrong.3:00 -
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It’s not just your imagination, winters across the U.S. are changing.4:49 -
How America watched the solar eclipse
Millions witnessed the Moon cover the Sun on April 8, some viewers sent us their videos.2:13 -
The Sun is way more chaotic than you think
Every now and then the sun hurls a piece of itself into the solar system.3:59
