The swimmers are now leaving Japan and the spotlight moves to the track and field events at Olympic Stadium. We'll walk you through the biggest things to watch for until the closing ceremony.

A photo of a real-life sponge and starfish hanging out together delighted the internet. But "the reality is a little crueler than perhaps a cartoon would suggest," says the researcher who posted it.

In an outbreak in Provincetown, Mass., three-quarters of cases occurred in fully vaccinated people. The study's findings suggest that vaccinated people infected with delta can transmit the virus.

For the first time since 2004, there will be no Usain Bolt scorching the track. That means a new generation of speed demons is looking to make its mark.

The city surpassed a record that had been set a day earlier, notching more than 3,000 new cases on Tuesday. For the first time in four days, no Olympic athletes tested positive for the coronavirus.

Chiles had been slated to compete in just two events in the team final: vault and floor. But with Biles out of the competition, she was suddenly competing on the balance beam and uneven bars too.

Los Angeles joins California, New York City and the U.S. Department of Veterans Affairs announced new, more stringent policies, and possible penalties, to push vaccination among their employees.

Gestures of protest have already begun. But exactly what's allowed under the International Olympic Committee's new rules on expression is somewhat murky.

From pictogram people to a moving rendition of "Imagine," the Tokyo Olympics' opening ceremony balanced fun with the seriousness of the moment.

Cases of the variant have popped up in several states. But neither the WHO nor the CDC considers it a variant of concern, and the fast-spreading delta variant continues to dominate U.S. cases.

The Amazon founder became the second billionaire this month to reach the edge of space — following Richard Branson, who rocketed there aboard a vessel made by his company Virgin Galactic.

Prime Minister Boris Johnson is in self-isolation following close contact with the UK health secretary, who announced he had tested positive for the coronavirus. Cases in the U.K. are rising fast.

Richard Branson started Virgin Galactic 17 years ago to make space travel possible for his generation. This weekend he'll be on its first fully crewed test flight to space, beating Jeff Bezos by days.

Life might feel like it's getting back to normal. But we're not out of the woods yet. Here's what the end of the pandemic might look like.

Political instability, the lasting effects of a devastating earthquake and a cholera epidemic, foreign political interventions and gang violence have all taken their toll on this nation.

The news is a blow to UNC, which had its reputation damaged by its trustees' initial reluctance to grant tenure to Hannah-Jones. Howard also announced writer Ta-Nehisi Coates will join its faculty.

With the changes, "we don't have to lie to get our passports. We can just be ourselves," said Dana Zzyym, an intersex person who has fought for more gender options on U.S. passports.

The delta variant is the fast-moving strain of the coronavirus now found in 96 countries. It's expected to be the dominant variant in the U.S. within weeks.

Law enforcement in Surfside, Fla., is using DNA samples from family members to help identify the victims recovered from the rubble. "It's very emotional," police official Alfredo Ramirez III says.

"The concrete deterioration is accelerating," the Champlain Towers South's condo board president wrote as she asked for a $15 million special assessment for major structural repairs.