The Laser Interferometer Gravitational-Wave Observatory is made up of two detectors, this one in Livingston, La., and one near Hanford, Wash. The detectors use giant arms in the shape of an "L" to measure tiny ripples in the fabric of the universe. Caltech/MIT/LIGO Lab hide caption
Fighters with the U.S.-backed Syrian Democratic Forces hold a position on a hilltop overlooking the last ISIS enclave in the village of Baghouz. Delil Souleiman/AFP/Getty Images hide caption
Jared Kushner and Ivanka Trump walk on the South Lawn of the White House to board Marine One on their way to the Camp David presidential retreat in Maryland on June 1, 2018. Yuri Gripas/Bloomberg via Getty Images hide caption
People pose for a picture among wildflowers in bloom Monday in Lake Elsinore, Calif. Gregory Bull/AP hide caption
Amy Klobuchar Amr Alfiky/NPR hide caption
Eloisa Tamez of El Calaboz, Texas, walks along the border wall in her backyard. She took the government to court over surveying her land and over the compensation she received for the land needed for border wall construction. Reynaldo Leanos Jr./Texas Public Radio hide caption
A railroad crossing is flooded with water from the Platte River, in Plattsmouth, Nebraska, after record high floodwaters inundated regions of the Midwest following an intense winter storm and rapid snow melt. Nati Harnik/AP hide caption
Former East Pittsburgh police officer Michael Rosfeld at the Dauphin County Courthouse in Harrisburg, Pa., earlier this month. Matt Rourke/AP hide caption
For certain species, a market preference for plate-sized whole fillets is driving fishermen to target smaller fish, like these juvenile Malabar snappers. That means some wild fish aren't getting the chance to reproduce before they're caught. Andre Brugger hide caption
People on Tuesday stand next to floral tributes placed across the road from the Al Noor Mosque in Christchurch, New Zealand, where dozens of worshippers were gunned down last week. Marty Melville/AFP/Getty Images hide caption
Marcelo Gleiser, 60, won the 2019 Templeton Prize for his work finding the common ground between science and spirituality. Eli Burakian/Dartmouth College hide caption
Al Noor mosque is shaded by clouds in Christchurch, New Zealand, on Tuesday. Vincent Thian/AP hide caption
House Judiciary Committee Chairman Jerry Nadler, D-N.Y., is one of four high-ranking Democrats to sign a letter to the FBI requesting an investigation into the actions of Li "Cindy" Yang. Tom Williams/CQ-Roll Call,Inc. / Getty Images hide caption
Alan Krueger, a Princeton University economist and chairman of former President Barack Obama's Council of Economic Advisers, specialized in workforce economics. Jewel Samad/AFP/Getty Images hide caption
Darrell Blatchley, environmentalist and director of D' Bone Collector Museum Inc., shows plastic waste found in the stomach of a Cuvier's beaked whale near the Philippine city of Davao. AFP/Getty Images hide caption
At Toyota's LFA Works plant in Japan, the automaker manufactures 10 Mirai hydrogen fuel cell cars a day. It has plans to ramp up production. Hiroo Saso hide caption
Barbara Loden wrote, directed and starred in Wanda, a 1970 film about a drifting woman. Courtesy of Criterion hide caption
Police and emergency personnel stand at the 24 Oktoberplace intersection in Utrecht, where a shooting took place Monday. Several people were wounded in a shooting on a tram in the Dutch city. Robin Van Lonkhuijsen/AFP/Getty Images hide caption
The Nokona baseball glove factory in the small town of Nocona, Texas, is one of the only remaining baseball glove factories in the U.S. Bill Zeeble/KERA hide caption
Russian President Vladimir Putin has signed a law that makes it a crime to spread online information insulting Russia's government. Alexander Zemlianichenko/AP hide caption
The reality of electronic medical records has yet to live up to the promise. suedhang/Getty Images/Cultura RF hide caption