Joe Palca
Joe Palca
NPR science correspondent. Founder of @joesbigideaSource
Washington, DC
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Out Of Thin Air: NASA Rover Makes Oxygen From Martian Atmosphere

Out Of Thin Air: NASA Rover Makes Oxygen From Martian Atmosphere

NASA Says Perseverance Rover Has Made Oxygen Out Of Martian Air Fresh off the first powered flight on another world, NASA's Mars 2020 mission has managed another key first that could pave the way for future astronauts.After making the first powered flight on another world, NASA's mission has managed another key first that could pave the way for future astronauts by making breathable oxygen out of the wispy Martian air. NASA announced that an instrument aboard the rover had successfully extracted carbon dioxide from the atmosphere on Mars and then oxygen atoms from carbon dioxide molecules....

Apr 22
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How Is The U.S. Vaccination Effort Going?

How Is The U.S. Vaccination Effort Going?

How Is The U.S. Vaccination Effort Going? Over 100 million Americans have received at least one dose of a COVID-19 vaccine. That number is climbing by about 3 million daily. We hear the latest information on how well the vaccines are working.Toggle more optionsHeard onToggle more optionsOver 100 million Americans have received at least one dose of a COVID-19 vaccine. That number is climbing by about 3 million daily. We hear the latest information on how well the vaccines are working.LEILA FADEL, HOST:More than 100 million Americans have received at least one dose of a COVID-19 vaccine, and...

Apr 4
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The Viral TikTok That Explains Vaccine Science — And Makes You Laugh

The Viral TikTok That Explains Vaccine Science — And Makes You Laugh

TikTok Vaccine Explainer — With Fork Hands! — Goes Viral : Goats and Soda A viral TikTok makes vaccine science understandable and pretty funny (it's a horror film parody). NPR caught up with creator and star Vick Krishna — tech expert by day, videographer by night.I've spent 30 years trying to make complicated science understandable. Explaining how vaccines work can be especially tricky. Explaining the new technology used in COVID-19 vaccines can be trickier still. So my heart filled with joy and delight when I saw Vick Krishna's TikTok explaining how the vaccines made by Pfizer-BioNTech...

Apr 1
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NIH Statement Raises Questions About AstraZeneca's Vaccine Data

NIH Statement Raises Questions About AstraZeneca's Vaccine Data

NIH Statement Raises Questions About AstraZeneca's Vaccine Data A U.S. trial of AstraZeneca's COVID-19 vaccine may have used outdated information. A statement by the National Institutes of Health says an incomplete view of efficacy data may have been provided.Toggle more optionsHeard onToggle more optionsA U.S. trial of AstraZeneca's COVID-19 vaccine may have used outdated information. A statement by the National Institutes of Health says an incomplete view of efficacy data may have been provided.NPR thanks our sponsors

Mar 23
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FDA Considers Emergency Authorization For Johnson & Johnson Vaccine

FDA Considers Emergency Authorization For Johnson & Johnson Vaccine

FDA Considers Emergency Authorization For Johnson & Johnson Vaccine The Food and Drug Administration's vaccine advisory committee meets today to consider the emergency use authorization application from Johnson and Johnson for its COVID-19 vaccine.Toggle more optionsHeard onToggle more optionsThe Food and Drug Administration's vaccine advisory committee meets today to consider the emergency use authorization application from Johnson and Johnson for its COVID-19 vaccine.RACHEL MARTIN, HOST:The Food and Drug Administration is getting ready to authorize a third COVID-19 vaccine for emergency...

Feb 26
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Novavax COVID-19 Vaccine Effective, But Less So Against Variant In South Africa

Novavax COVID-19 Vaccine Effective, But Less So Against Variant In South Africa

Novavax COVID-19 Vaccine Effective, But Less So Against South African Variant : Coronavirus Updates Novavax says its COVID-19 vaccine is 89% effective at preventing illness, according to an interim analysis of a U.K. study. But the vaccine wasn't as effective against some viral variants.Toggle more optionsHeard onToggle more optionsThe biotech company Novavax says its COVID-19 vaccine is 89% effective at preventing the illness, according to an interim analysis of a large study conducted in the U.K. The results come from a clinical trial involving more than 15,000 volunteers, of whom more...

Jan 29
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What Does The New COVID-19 Variant In The U.K. Mean For Americans?

What Does The New COVID-19 Variant In The U.K. Mean For Americans?

What Does The New COVID-19 Variant In The U.K. Mean For Americans? A look at the week's COVID-19 and vaccine news, including new information from the variant out of the United Kingdom.Toggle more optionsHeard onToggle more optionsA look at the week's COVID-19 and vaccine news, including new information from the variant out of the United Kingdom.NPR thanks our sponsors

Dec 26
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Independent Panel To Give FDA Its Opinion On Moderna COVID-19 Vaccine

Independent Panel To Give FDA Its Opinion On Moderna COVID-19 Vaccine

Independent Panel To Give FDA Its Opinion On Moderna COVID-19 Vaccine An advisory panel meets Thursday to give the FDA guidance about granting an Emergency Use Authorization for Moderna's vaccine. If granted, it would be the second COVID-19 vaccine available in the U.S.Toggle more optionsHeard onToggle more optionsAn advisory panel meets Thursday to give the FDA guidance about granting an Emergency Use Authorization for Moderna's vaccine. If granted, it would be the second COVID-19 vaccine available in the U.S.STEVE INSKEEP, HOST:Today, an independent advisory panel gives its judgment of a...

Dec 17
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Pfizer To Seek FDA OK For COVID-19 Vaccine 'Within Days'

Pfizer To Seek FDA OK For COVID-19 Vaccine 'Within Days'

Pfizer To Seek FDA Authorization For Coronavirus Vaccine : Shots - Health News The vaccine was found to be 95% effective in an updated study analysis. Safety data required by the Food and Drug Administration showed no serious concerns, the company said.Toggle more optionsHeard onToggle more optionsPfizer is ready to ask the Food and Drug Administration to authorize emergency use of the company's COVID-19 vaccine, after an updated analysis of the clinical trial data found the vaccine to be 95% effective. The of the vaccine study were released Wednesday. An had indicated the vaccine was more...

Nov 18
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Breakthrough infections might not be a big transmission risk. Here's the evidence

Breakthrough infections might not be a big transmission risk. Here's the evidence

Conventional wisdom says that if you're vaccinated and you get a breakthrough infection with the coronavirus, you can transmit that infection to someone else and make that person sick. But new evidence suggests that even though that may happen on occasion, breakthrough infections might not represent the threat to others that scientists originally thought. Ross Kedl, an immunologist at the University of Colorado School of Medicine, will point out to anyone who cares to listen that basic immunology suggests the virus of a vaccinated person who gets infected will be different from the virus...

a day ago
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