The international scientists dispatched to China by the World Health Organization to find out where the coronavirus came from said Wednesday the search has stalled and warned that the window of opportunity for solving the mystery is "closing fast."

Meanwhile, a U.S. intelligence review ordered up by President Joe Biden proved inconclusive about the virus's origin, including whether it jumped from an animal to a human or escaped from a Chinese lab, The Washington Post reported Wednesday.

The ground at the summit of Kilauea volcano in Hawaii has been rumbling and swelling in recent days, prompting scientists to warn that the mountain could once again disgorge lava. But there's no indication an eruption is imminent. The volcano, which is among the world's most active, has behaved similarly in the past without any magma breaking the surface.

Here's an overview of the latest developments at Kilauea:

A 30-year-old man who appeared nude at 4 months old in 1991 on the cover of Nirvana's "Nevermind" album is suing the band and others, alleging the image is child pornography they have profited from.

The lawsuit, filed by Spencer Elden on Tuesday in federal court in California, alleges that Nirvana and the record labels behind "Nevermind" "intentionally commercially marketed Spencer's child pornography and leveraged the shocking nature of his image to promote themselves and their music at his expense."

A wildfire that burned several homes near Los Angeles may signal that the region is facing the same dangers that have scorched Northern California.

The fire in San Bernardino County erupted Wednesday afternoon, quickly burned several hundred acres and damaged or destroyed at least a dozen homes and outbuildings in the foothills northeast of LA, fire officials said. Crews used shovels and bulldozers and mounted an air attack to keep the South Fire from the tiny communities of Lytle Creek and Scotland near the Cajon Pass.

"Vaccine passports" are digital or paper documents that show you were vaccinated against COVID-19, and could help you get into a growing number of places.

What they look like and why you might want one depend on where you live, but more private venues, workplaces and governments are requiring proof of vaccination in public settings.

Five months after the Biden administration declared an emergency and raced to set up shelters to house a record number of children crossing the U.S.-Mexico border alone, kids continue to languish at the sites, while more keep coming, child welfare advocates say.

More than 700 children spent three weeks or longer at the government's unlicensed sites in mid-July, according to declarations filed with a federal court overseeing custody conditions for immigrant youth. Advocates say children should be released quickly to their relatives in the U.S. or sent to a licensed facility.

Huge gaps between air quality sensors in the western U.S. have created blind spots in the warning system for wildfire smoke plumes sweeping North America this summer, amid growing concern over potential health impacts to millions of people exposed to the pollution.

Government programs to alert the public when smoke pollution becomes unhealthy rely on about 950 permanent monitoring stations and dozens of mobile units that can be deployed around major fires.

Japan suspended use of about 1.63 million doses of Moderna vaccine Thursday after contamination was found in unused vials, raising concern of a supply shortage as the country tries to accelerate vaccinations amid a COVID-19 surge.

The health ministry said contamination was reported from multiple vaccination sites. Some doses might have been administered, but no adverse health effects have been reported so far, officials said.

Manchester City manager Pep Guardiola says he'd like to coach a national team after his contract with the English club ends in 2023.

Speaking to Brazilian investors on Wednesday, the 50-year-old Spaniard said he plans to see out his contract with City but could go into international management after that.

U.S. Vice President Kamala Harris turned her attention to issues surrounding worker rights and civil liberties Thursday as she closed out her visit to Southeast Asia, elevating activists in a region of the world known for its challenges and restrictions to human rights.

In Vietnam, Harris participated in what her team billed as a "changemakers" event with activists working on LGBTQ rights and climate change.