Aeroflot employees with a puppy at the canine service of Aeroflot at Sheremetyevo International Airport in Moscow Region, Russia on October 2, 2020, that has started to train service dogs to detect COVID-19 in people. (Photo by Vladimir Gerdo/TASS)

Google has built its first self-driving car prototypes and hopes to test hundreds more models this summer. If all goes well, the company is planning a pilot program in California over the next few years.

A dog named Luna high-fives a person in the Angelino Heights neighborhood of Los Angeles, California, U.S., August 26, 2022. (Photo by Mario Anzuoni/Reuters)

Paramedics carry an injured woman out from a subway station after a rush-hour subway train derailment, to be transported by a medical helicopter in Moscow, Russia, on Tuesday, July 15, 2014. A rush-hour subway train derailed in Moscow Tuesday, killing 20 people and injuring at least 150, emergency officials said. Several cars left the track in the tunnel after a power surge triggered an alarm, which caused the train to stop abruptly. (Photo by Ivan Sekretarev/AP Photo)

Majesty Davis, 3, cries while visiting Santa Claus, who sits behind a plexiglass divider due to the coronavirus disease (COVID-19) pandemic, at the Willow Grove Park Mall in Willow Grove, Pennsylvania, U.S. November 14, 2020. (Photo by Mark Makela/Reuters)

Pausing for a selfie as plum blossoms burst into bloom in Dujiangyan City, in southwest China’s Sichuan province on February 20, 2024. (Photo by Splash News and Pictures)

Ex-Playboy model Brittny Button (nee Ward) poses in sеxy photoshoot, 2022. The American sizzler, 31, married to British Formula One ace Jenson Button, shows off her fabulous physique in stylish photography campaign. The couple, who married in March 2022, have two children together. (Photo by Jean-Claude Vorgeack/Capture Media Agency)

Members of the Moroccan Royal Armed Forces Rescue and Relief Unit take part in a biochemical simulation organized by the US Defense Threat Reduction Agency (DTRA) as part of the “African Lion” military exercise, in the port of Agadir, on June 15, 2021. (Photo by Fadel Senna/AFP Photo)