Prescribed burns, like this one in Humboldt County, Calif., reduce the underbrush without destroying trees. Lenya Quinn-Davidson hide caption
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Tuesday
Monday
A team of researchers accidentally discovered this island. It has yet to be named and is believed to be the northernmost island on the planet. Morten Rasch via AP hide caption
As Schools Reopen, Child Psychiatrists Expect To See A Surge Of Kids Who Need Help
A woman surveys damage Monday from Hurricane Ida in a neighborhood in Kenner, La. The storm was fueled by abnormally warm water in the Gulf of Mexico. Scott Olson/Getty Images hide caption
People who love a good thrill are known in psychology as high sensation seekers. According to psychologist Ken Carter, high sensation seekers produce less cortisol than low sensation seekers in risky situations like white water kayaking. They also seem to produce more dopamine, which is that neurotransmitter that's associated with pleasure. Behrouz Mehri/AFP via Getty Images hide caption
Friday
A new U.S. intelligence report could not conclude whether the SARS-CoV-2 virus escaped from a lab in Wuhan, China or spilled over from an infected animal. Without more information about the early days of the outbreak, a more definitive explanation is unlikely, the report found. Ng Han Guan/AP hide caption
Space Travel Is Taking Off, But Companies Also Want To Sell Things From Outer Space
People don face masks to help keep the coronavirus at bay in June in Ankara, Turkey. But what about earlier recommendations to stay 6 feet away from others and limit close contact to 15 minutes? Are these still effective against the contagious delta variant? Adem Altan/AFP via Getty Images hide caption
Xavier Becerra, secretary of Health and Human Services (HHS). Bloomberg/Bloomberg via Getty Images hide caption
Destroyed houses are seen in Schuld, Germany, on July 15 after devastating floods hit the region. Michael Probst/AP hide caption
Dew drops collected on blades of grass in Bangkok, Thailand. Anatthaphon Buangam/Getty Images/EyeEm hide caption
Thursday
Hillary Creech, of Jonesboro, Ark., built a DIY air purifier for her husband's classroom. "My husband's classroom in particular has a wall full of windows, none of which open," she said Courtesy of Hillary Creech hide caption
Does Your Kid's Classroom Need An Air Purifier? Here's How You Can Make One Yourself
