Lake Elsinore, Calif., was drenched Thursday by a storm that dropped rain and snow across much of the state. The National Weather Service is providing forecasts and warnings as usual, but employees are working without pay. Jae C. Hong/AP hide caption
A "blood moon" seen from western Germany during a total lunar eclipse on Sept. 28, 2015. Patrik Stollarz/AFP/Getty Images hide caption
A curious harbor seal checks out diver Mike Weber as he and other divers pick up golf balls in the waters off the coast of Northern California. His daughter wrote a paper about all the golf balls found in the ocean from nearby golf courses. Courtesy of Alex Weber hide caption
President Trump called for a beefing up of existing defenses, such as the Aegis ashore system pictured. In addition, he called for research into new advanced concepts. Mark Wright/Missile Defense Agency hide caption
The NASA/ESA Hubble Space Telescope observed Saturn on June 6. NASA, ESA, A. Simon (GSFC) and the OPAL Team, and J. DePasquale (STScI) hide caption
Researchers studying mouse brains identified the cells that encode pain's unpleasantness. Sally Anscombe/Getty Images hide caption
Even something as simple as chopping up food on a regular basis can be enough exercise to help protect older people from showing signs of dementia, a new study suggests. BSIP/UIG/Getty Images hide caption
An image, from a scanning electron micrograph, of Heterorhabditis megidis nematode worms (colored blue). These parasitic worms harbor a bacteria that repels mosquitoes. Steve Gschmeissner/Science Source hide caption
The ice disk is seen spinning on the Presumpscot River in drone video image provided by the city of Westbrook, Maine. Tina Radel/AP hide caption
The China National Space Administration's lunar lander, seen on Jan. 11. China National Space Administration/Xinhua News Agency/AP hide caption
Surgeons performed more than 21,000 kidney transplants and 8,000 liver transplants in 2018, according the United Network for Organ Sharing. shapecharge/Getty Images hide caption
Americans now have a 1 in 96 chance of dying from an opioid overdose, according to new analysis from the National Safety Council. Spencer Platt/Getty Images hide caption