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Allyson Felix and Quanera Hayes have spoken out about the joys of motherhood and the obstacles that female athletes face that men don't.

Raquel Coronell Uribe, a history and literature major from Miami, calls the role a "huge" honor: "Even if it took 148 years, I'm thrilled that I get to be in the position to be that first person."

NPR's David Kestenbaum reports on a possible wrinkle in the space-time continuum. Really. Physicists measuring the fundamental characteristics of a subatomic particle, the muon, have come up with some very puzzling results that could punch a hole in the long-standing "standard model" of how matter is put together. And that could help usher in a completely new theory of matter, time and space. Unless, of course, some scientist has made a mistake. (4:30) (It was later revealed this was a mistake: "Well, I would say I'm responsible for the mistake. My collaborator did most of the work, but I am equally guilty of making mistakes." Toichiro Kinoshita, a physicist at Princeton University. Kinoshita's sin was to have a minus sign where he should have had a plus or maybe the other way around. He can't quite remember, though it ended up having gigantic consequences. Kinoshita and his colleague were calculating how a particular subatomic particle behaves when it's stuck in a magnetic field. The particle, it turns out, wobbles like a toy top at a particular frequency. Kinoshita enlisted hundreds of computers and, after a decade of heroic work, had precisely predicted how fast it should wobble according to the laws of physics. Last winter, other physicists who were out measuring the wobble found it differed significantly from Kinoshita's prediction. In the clockwork world of physics, this was potentially a huge finding, signaling something new and mysterious, except that it wasn't. Kinoshita traced his error to a tiny quirk in a computer program he was using. He hadn't checked that bit, in part because other physicists using a different approach had gotten the same answer."

Leakey made important contributions to our understanding of human origins through his fossil finds. He later gained fame for taking on poachers who threatened to wipe out Kenya's elephants and rhinos.

Barry Bonds hits a 445-foot home run off Colorado Rockies' pitcher Byung-Hyun Kim, delighting the home fans in San Francisco. His 715 career home runs put him second on the all-time list behind Henry Aaron, who passed Ruth in 1974 and finished with 755 home runs.

In the crowded field of indie rock, a band's first few albums are crucial. They establish the band's sound and expand its fanbase. But Cincinnati's Heartless Bastards breaks those rules with its second CD, All This Time. Instead of sticking to its workmanlike gritty blues rock, the band has developed a more open, expansive and personal sound.

In London, churches across the city held memorial services for victims of Thursday's terrorist attacks. Senior Christian, Jewish and Muslim clerics also gathered and issued a joint statement calling for unity and dialogue between faiths in the aftermath.

Jeremy Butler left policing to become a professor and has written a book about police control tactics.

The Los Angeles Rams beat the Cincinnati Bengals 23-20 after a late comeback to win their second Super Bowl title. It was a fourth-quarter touchdown with less than 2 minutes left that sealed the deal.

The National Guard is doubling down on marketing efforts amid struggles to attract new recruits and maintain strength in the post-COVID job ecosystem.