In this photo provided by the Department of Fire and Emergency Services, its members search for a radioactive capsule believed to have fallen off a truck being transported on a freight route on the outskirts of Perth, Australia, on Saturday. AP hide caption
A "mysterious" flying spiral spotted by the Subaru Telescope on Mauna Kea, Hawaii, early on Jan. 18, could be related to a SpaceX satellite launch earlier in the day, scientists speculated. NAOJ & Asahi Shimbun via Storyful/Screenshot by NPR hide caption
A field researcher holds a male bat that was trapped in an overhead net as part of an effort to find out how the animals pass Nipah virus to humans. The animal will be tested for the virus, examined and ultimately released. Fatima Tuj Johora for NPR hide caption
Dr. Yejin Choi University of Washington Professor and MacArthur Fellow, works to improve AI's understanding of common sense. John D. and Catherine T. MacArthur Foundation hide caption
Wegovy has been called "a major breakthrough" given how well it works to reduce body weight. But the injection drug is extremely expensive and when people can't afford to stay on it, they experience rebound weight gain that's hard to stop. Katherine Streeter for NPR hide caption
In the video game and HBO show The Last of Us, an infectious fungi turns humans into zombies. David McNew/Getty Images hide caption
Recently, Richard Trumka, the commissioner of the Consumer Product Safety Commission (CPSC), suggested regulating gas stoves. A growing body of research points to health and climate risks associated with the use of gas stoves. Scott Olson/Getty Images hide caption
On Jan. 23, 2020, as the coronavirus spread in China, residents of Wuhan, where it was first identified, donned masks to go shopping. The U.S. didn't officially endorse masks as a preventive measure for the public for a number of weeks. Stringer/Getty Images hide caption
Thinking about the next pandemic keeps lots of researchers busy. Peter Zelei Images/Getty Images hide caption
Prairie voles mate for life and are frequently used to study human behavior. Todd H. Ahern/Emory University hide caption
Seeds are seen as students at Eucalyptus Elementary School in in Hawthorne, Calif., learn to plant a vegetable garden on March 13, 2019. The U.S. supply of native seeds is currently too low to respond to climate change-related events, a new report finds. David McNew/AFP via Getty Images hide caption
This image shows purified particles of mpox virus, formerly called monkeypox. Viruses like these can be genetically altered in the lab in ways that might make them more dangerous. NIAID hide caption
Of the many species the scientists photographed aboard the RV Investigator, the deep-sea batfish made one of the biggest splashes across social media. Benjamin Healley / Museums Victoria hide caption
Asteroid 2023 BU will streak about 2,200 miles above the Earth's surface on Thursday night. Its path is seen here in an image from NASA's Scout impact hazard assessment system. The moon's path is in gray. NASA/JPL-Caltech hide caption