The variant has begun to outpace other versions of the virus in Britain, illustrating the risks of a faltering global immunization drive.

Press (re)play to remember: How the brain strengthens memories during sleep
While we sleep, the brain produces particular activation patterns. When two of these patterns—slow oscillations and sleep spindles—gear into each other, previous experiences are reactivated. The stronger the reactivation, the clearer will be our recall of past events, a new study reveals.

The Caribbean Conundrum: United by Tourists, Divided by Covid
The pandemic struck these islands unequally. What does this mean for tourism, a major economic driver for the entire region? The answer is unique, just like the islands.

2 Million Runs: Baseball on the Verge of Mile
There was much fanfare in 1975 when Bob Watson scored baseball’s millionth run. With baseball’s historical stats in flux, the two millionth will score this week without much fuss.

After 21 Runners Died, China’s Ultramarathon Looks Inward
After 21 runners died during an ultramarathon, will the endurance sport look inward and explore whether it has become too extreme?

Ellyse Perry: Australia’s cricket superstar who also played in a FIFA World Cup
She’s a global icon and a superstar cricketer who’s no stranger to record-breaking exploits, yet there’s one piece of advice Ellyse Perry always insists on keeping close to heart.

A second person was arrested in the gang assault of a Jewish man in New York during protests
A second person has been arrested in connection with the attack on a Jewish man near Times Square during protests in New York City last week, the New York Police Department said Monday.

Nearly 50 years after the crime, Massachusetts district attorney says teenager was murdered by a Catholic priest
Nearly 50 years after a Massachusetts teenager was murdered, officials announced Monday that a Catholic priest close to the family was responsible for the crime.

15-year-old soccer player should be allowed to play in US professional women’s league, judge rules
A federal judge has ruled that a 15-year-old soccer player should be able to be signed by the National Women’s Soccer League despite the league’s existing age restriction.

Watch 1000 Musicians Play the Foo Fighters’ “Learn to Fly,” Nirvana’s “Smells Like Teen Spirit,” Queen’s “We Will Rock You,” and David Bowie’s “Rebel Rebel”
In the 1980s, avant-garde composer, guitarist Glenn Branca began writing symphonies for electric guitars — dozens of them, all playing at once, creating unprecedented psychoacoustic effects — sometimes beautiful harmony, sometimes unsettling dissonance — that reduced Branca himself to tears. “I remember one rehearsal where I actually had to stop and cry,” he once said. …