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A woman carrying her mask walks past a sign mandating the wearing of face coverings in Palisades Park in Santa Monica on July 25. Robyn Beck/AFP via Getty Images hide caption

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Robyn Beck/AFP via Getty Images

Wearing A Mask Could Be Even More Important Than We Thought

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Virginia Gov. Ralph Northam speaks during a news conference in Richmond, Va. on June 4. Virginia has rolled out a smartphone app to automatically notify people if they might have been exposed to the coronavirus. Steve Helber/AP hide caption

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Steve Helber/AP

Conner Curran, 9, (right) and his brother Will, 7, at their home in Ridgefield, Conn. The gene therapy treatment that stopped the muscle wasting of Conner's muscular dystrophy two years ago took more than 30 years of research to develop. Kholood Eid for NPR hide caption

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Kholood Eid for NPR

Scientists in Canada have diagnosed malignant cancer for the first time in a dinosaur, a Centrosaurus apertus from 76 to 77 million years ago. Sergey Krasovskiy/Stocktrek Images/Getty Images hide caption

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Sergey Krasovskiy/Stocktrek Images/Getty Images

New Research Shows Dinosaurs Suffered From Malignant Cancer, Too

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Farmers work during a harvest in Jutland, Denmark. People keep worrying about food shortages. Some economists say the fears actually create their own problems. Nick Brundle Photography/Getty Images hide caption

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Nick Brundle Photography/Getty Images

Food Is Growing More Plentiful, So Why Do People Keep Warning Of Shortages?

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Vaccine-makers are readying 190 million doses of the flu vaccine for deployment across the U.S. this fall — 20 million more doses than in a typical year. A nasal spray version will be available, as well as shots. Justin Sullivan/Getty Images hide caption

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Justin Sullivan/Getty Images

British archaeologists work, on October 2, 2009, at the ruins of an arena built early in the third century BC outside Ostia, the ancient imperial port near Rome. Sarah Parcak's work using satellite imagery and data led to the discovery of the site. Vincenzo Pinto/AFP via Getty Images hide caption

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Vincenzo Pinto/AFP via Getty Images

The Search For Ancient Civilizations On Earth ... From Space

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The United Nations Intergovernmental Panel on Climate Change met in Incheon, South Korea, in October 2018. The pandemic has forced scientists around the world to write the latest U.N. climate report without meeting in person. Jung Yeon-Je /AFP via Getty Images hide caption

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Jung Yeon-Je /AFP via Getty Images

Everyone Loves The Chat Box: How Climate Science Moved Online

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The health threat posed by the coronavirus pandemic is particularly intense for people with cancer. Medication weakens the immune system. Cancer treatments are often delayed. FG Trade/Getty Images hide caption

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FG Trade/Getty Images

Pandemic Deepens Cancer's Stress And Tough Choices

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The SpaceX capsule sits aboard a recovery ship in the Gulf of Mexico. NASA/Screenshot by NPR hide caption

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NASA/Screenshot by NPR

Splashdown! SpaceX And NASA Astronauts Make History

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A bottle containing orange juice and rice cooking wine is set as a trap by Jenni Cena, pest biologist and trapping supervisor from the Washington State Department of Agriculture, in an effort to catch Asian giant hornets, also known as murder hornets. Karen Ducey/Getty Images hide caption

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Karen Ducey/Getty Images

Not your grandmother's nuclear reactor. A drawing of Oklo's proposed Aurora nuclear power plant, which would produce enough electricity for about 1000 homes. Oklo hide caption

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Oklo

Smaller Nuclear Plants May Come With Less Stringent Safety Rules

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NASA astronauts (from left) Bob Behnken, Doug Hurley and Chris Cassidy are the U.S. members of the Expedition 63 crew aboard the International Space Station. Behnken and Hurley are scheduled to return to Earth on Aug. 2. NASA hide caption

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NASA

Andrew Stuart wears a bandana as a mask while taking a selfie with his dog, Voltron, on Sunset Blvd, Thursday, July 2, 2020, in West Hollywood, Calif. Ashley Landis/AP hide caption

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Ashley Landis/AP

Coronavirus Questions Answered, Plus A Chat About 'Indian Matchmaking'

Should I wear a mask while running? How often should I wipe down my phone? Can I say hello to other people's dogs? Our listeners had questions about coronavirus, we have answers. Sam is joined by Short Wave host Maddie Sofia to dig into the science behind some of the decisions we have to make about everyday encounters in this pandemic. Then, Sam is all caught up in the buzz around Netflix's Indian Matchmaking, and he calls up journalist and former It's Been a Minute intern Hafsa Fathima to break it down.

Coronavirus Questions Answered, Plus A Chat About 'Indian Matchmaking'

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Director of the National Institutes of Health, Dr. Francis Collins, holds a model of the coronavirus. This is the sixth vaccine candidate to join Operation Warp Speed's portfolio, and the largest vaccine deal to date. Saul Loeb/Pool/AFP via Getty Images hide caption

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Saul Loeb/Pool/AFP via Getty Images

A man runs with his dog while at Brooklyn Bridge Park. If you're greeting other doggos, do it from a distance. Al Bello/Getty Images hide caption

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Al Bello/Getty Images

Coronavirus Q&A: Running Outside, Petting Dogs, And More

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A healthcare worker zips up a protective barrier in the Covid-19 Unit at United Memorial Medical Center in Houston on July 2. Mark Felix/AFP via Getty Images hide caption

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Mark Felix/AFP via Getty Images

The U.S. Has Lost Control Of The Coronavirus. What Now?

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A scientist is pictured working during a visit by Britain's Prince William, Duke of Cambridge (unseen), to Oxford Vaccine Group's laboratory facility at the Churchill Hospital in Oxford, west of London on June 24, 2020, on his visit to learn more about the group's work to establish a viable vaccine against coronavirus COVID-19. STEVE PARSONS/POOL/AFP via Getty Images hide caption

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STEVE PARSONS/POOL/AFP via Getty Images

Air pollution is a persistent problem in California's Central Valley. A new study finds that the places that were most polluted nearly 40 years ago generally remain the most polluted today. David McNew/Getty Images hide caption

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David McNew/Getty Images