U.S. airline regulators have opened an investigation into Delta Air Lines, which was still struggling to restore operations on Tuesday, more than four full days after a faulty software update caused technological havoc worldwide and disrupted global air travel. Here, a Delta Air Lines plane leaves the gate on July 12, 2021, at Logan International Airport in Boston. Michael Dwyer/AP hide caption
Britain's Charlotte Dujardin competes in the equestrian dressage individual final at the Tokyo Summer Olympics on July 28, 2021. Dujardin has withdrawn from the Paris Games after a video emerged that she says shows her behaving inappropriately while coaching other riders. David Goldman/AP hide caption
Democratic presidential candidate and Vice President Harris speaks to supporters during a campaign rally at West Allis Central High School on Tuesday in West Allis, Wis. Jim Vondruska/Getty Images hide caption
Logo for SecureDrop and NPR. NPR hide caption
Members of the U.S. Secret Service stand watch as Vice President and Democratic Presidential candidate Kamala Harris speaks during her first campaign rally in Milwaukee, Wisconsin, on July 23, 2024. The assassination attempt on former president Donald Trump, the abrupt withdrawal of President Joe Biden from the race have added even more fuel to an active landscape of conspiracy theories about the 2024 campaign. Kamil Krzaczynski/AFP via Getty Images/AFP hide caption
This photo, provided by the Wildlife Conservation Society, shows a Matschie's tree kangaroo joey that made its first appearance from its mother's pouch at New York's Bronx Zoo, last Thursday. The joey, born at the end of December, is the second of its species born at the Bronx Zoo and to this female since 2021. Terria Clay/Wildlife Conservation Society/AP hide caption
Study participant Freddie sits next to a jar with an odor sample, then approaches a bowl to check for a treat. University of Bristol hide caption
Russian President Vladimir Putin and Chinese President Xi Jinping shake hands during a meeting in Beijing on Oct. 18, 2023. Sergei Guneyev/AFP via Getty Images hide caption
Duke Fakir holds his life time achievement award backstage at the 51st Annual Grammy Awards in Los Angeles on Feb. 8, 2009. Fakir, the last of the original Four Tops, died Monday of heart failure at age 88. Matt Sayles/AP hide caption
Vice President Kamala Harris speaks from the South Lawn of the White House in Washington on Monday during an event with NCAA college athletes. Susan Walsh/AP hide caption
Palestinian detainees after they were released by the Israeli army, in Deir Al Balah, Gaza Strip, on June 20. Ashraf Amra/Anadolu via Getty Images hide caption
Secret Service Director Kimberly Cheatle testifies before the House Oversight and Accountability Committee during a hearing on Monday. Cheatle resigned her position the next day. Kent Nishimura/Getty Images hide caption
A nurse takes care of a dengue fever patient at the Sergio Bernales National Hospital in the outskirts of Lima on April 17. The number of suspected cases in Peru so far this year is over 100,000. Juan Carlos Cisneros/AFP via Getty Images hide caption
Vice President Harris greets staff at campaign headquarters in Wilmington, Del. on Monday. Erin Schaff/AFP via Getty Images hide caption
Barb Ibrahim, left, drove half an hour to visit Amber and Matt Luman and their new daughter, Esserley. Ibrahim, a nurse of more than 30 years, is part of new program in Oregon that offers free home visits from a registered nurse for any family with a newborn. Cory Turner/NPR hide caption
Sen. JD Vance, R-Ohio, the Republican vice presidential candidate, speaks at a rally in Grand Rapids, Mich., on Saturday. Bill Pugliano/Getty Images hide caption
US President Joe Biden during a campaign event in Detroit, Michigan, US, on Friday, July 12, 2024. Emily Elconin/Bloomberg via Getty Images hide caption
To celebrate the 25th anniversary of the launch of the Chandra X-ray Observatory, the mission released 25 views of cosmic objects ranging from supernova remnants to galaxy clusters and more. NASA/SAO/CXC hide caption
Hundreds of people gather at the site of a mudslide in the Kencho Shacha Gozdi district, Gofa Zone, southern Ethiopia, on Monday. At least 157 people were killed in mudslides in a remote part of Ethiopia that has been hit with heavy rainfall, according to local authorities. Isayas Churga/Gofa Zone Government Communication Affairs Department/AP hide caption
Vice President Harris greets staff at campaign headquarters in Wilmington, Del., on Monday. Erin Schaff/AFP via Getty Images hide caption
Glyptodonts were giant, armadillo-like shelled mammals that went extinct about 10,000 years ago. A study reveals that cut marks on a glyptodont fossil in South America could have been made by humans a little over 20,000 years ago. Daniel Eskridge/Stocktrek Images/Science Source hide caption
From left, Chris Evert, Jimmy Connors, Arthur Ashe, Bjorn Borg, John McEnroe, Billie Jean King and Martina Navratilova all feature in new documentary series, Gods of Tennis. Mindhouse Production Team hide caption
Alsu Kurmasheva, an editor for the U.S. government-funded Radio Free Europe/Radio Liberty's Tatar-Bashkir service, attends a court hearing in Kazan, Russia, in May. A Russian court has convicted Kurmasheva of spreading false information about the Russian army and sentenced her to 6½ years in prison after a secret trial, court records and officials said on Monday. /AP hide caption
FILE - Christopher Dunn, right, listens to his attorney Justin Bonus from New York City during the first day of his hearing to decide whether to vacate his murder conviction, Tuesday, May 21, 2024, at the Carnahan Courthouse in St. Louis. A Missouri judge on Monday, July 24, 2024, overturned the conviction of Dunn, who has spent more than 30 years in prison for a killing he has long contended he didn’t commit. Laurie Skrivan/Pool St. Louis Post-Dispatch hide caption