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The winners of the 2019 Nobel Prize in physiology or medicine are Gregg Semenza of the U.S., Peter Ratcliffe of Britain and William Kaelin of the U.S. They're seen here on a screen during a news conference at the Karolinska Institute in Stockholm.

Trio Wins Nobel Prize In Physiology Or Medicine For Work On Cells And Oxygen

The three physicians "found the molecular switch that regulates how our cells adapt when oxygen levels drop," a member of the Nobel Committee said.

A woman covered in a red and white flag is among protesters in Minsk on Sept. 6. Sunday's demonstration marked the beginning of the fifth week of daily protests calling for Belarusian President Alexander Lukashenko's resignation.

'Terror Against The People': Belarus Detains Another Opposition Leader

Unidentified masked men detained opposition leader Maxim Znak on Wednesday. Others have been forced into exile or arrested. Nobel laureate Svetlana Alexievich warned of "terror against the people."

HACKING YOUR MIND

Airs Wednesdays, Sept. 9 - 30, 2020 at 10 p.m. on KPBS TV+ Sundays, Sept. 13 - Oct. 4 at 10 p.m. on KPBS 2 + PBS Video App

George Washington University is "looking into the situation" of history professor Jessica A. Krug, after a blog post written under that name said that she had invented her Black Caribbean identity, despite actually being white.

GWU Investigating Whether White Professor Invented Her Black Identity

"You should absolutely cancel me, and I absolutely cancel myself," says a blog post signed Jessica A. Krug. That's also the name of a historian of the African Diaspora at George Washington University.

CAS-9 is a powerful protein that acts like a pair of molecular scissors, capable of cutting strands of DNA in precise locations in the genome so that the DNA can be edited.

NOVA: Human Nature

Airs Wednesday, Sept. 9, 2020 at 8 p.m. on KPBS TV + Sunday, Sept. 13 at 8 p.m. on KPBS 2 + Stream with the PBS Video App

V Unbeatable, the dance troup from Mumbia that won the top prize on America's Got Talent: The Champions this year, are pictured with (left to right) Alesha Dixon, Heidi Klum, Howie Mandel, Terry Crews and Simon Cowell.

Whatever Happened To ... V Unbeatable, Mumbai Dancers Who Won 'America's Got Talent'

In February, the group of young, acrobatic dancers took the top prize. But the pandemic has put their dreams on hold — and had a disastrous impact on family life.

'People Around The President Are Trying To Stop Him,' 'Times' Journalist Says

Pulitzer Prize-winning journalist Michael Schmidt says it's unusual for advisers to be so focused on preventing a president from breaking the law. His new book is Donald Trump v. The United States.

A marble plaque over the main entrance of the Vatican Archives reads in Latin "Secret Vatican Archive." The Vatican's library on Pope Pius XII and his record during the Holocaust opened to researchers in March.

Records From Once-Secret Archive Offer New Clues Into Vatican Response To Holocaust

The Vatican has long maintained that Pope Pius XII did everything he could to save Jewish lives, but newly unearthed papers have renewed accusations of complicit silence against him.

This Bornean horseshoe bat and other bat species can harbor coronaviruses. The nonprofit group EcoHealth Alliance had its NIH research money cut for a project in China on bats and coronaviruses this spring — but just got a new multimillion dollar grant from the agency.

Group Whose NIH Grant For Virus Research Was Revoked Just Got A New Grant

EcoHealth Alliance is one of 11 recipients of funds to set up the Centers for Research in Emerging Infectious Diseases. But the grant won't let them revisit earlier research on bats and coronavirus.

First lady Melania Trump arrives to speak on the second night of the Republican National Convention from the Rose Garden of the White House on Tuesday.

4 Takeaways From Night 2 Of The Republican National Convention

Melania Trump empathized with those struggling with the coronavirus, while others sidestepped the pandemic's impact on the economy. The program disregarded old lines between official and political.

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