Up Next
Back to Show
NOVA
How Long Does Covid-19 Immunity Last?
A person who has been vaccinated against COVID-19 will have a slightly different immune response to the coronavirus than someone who was previously infected, researchers say. How long does immunity last—and is it all about antibodies?
Support Provided By
53:30
In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate
53:31
Explore great ancient Maya cities and why their inhabitants abandoned them.
53:21
Intrepid paleontologists discover that dinosaurs thrived in the Arctic’s cold and dark.
Unlock with PBS Passport
53:28
Take a tasty look at insect foods that could benefit our health and our warming planet.
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.
54:06
Scientists race to help corals adapt to warming oceans through assisted evolution.
53:46
NASA launches its most ambitious search yet for traces of ancient life on Mars.
53:32
Discover the fascinating chemistry that makes our world and everything in it—including us.
53:30
Discover the fascinating chemistry that makes our world and everything in it—including us.
53:31
Discover the fascinating chemistry that makes our world and everything in it—including us.
53:31
Scientists look to geoengineering and other methods to cool the planet.