Seismic stations detected explosion at Ukrainian dam A Norwegian organization says that two seismic networks it oversees saw an explosion at the Kakhovka dam around the time it failed. Read more on NPR

A lesson Parkland shooting survivor David Hogg learned: Find the joy David Hogg is a survivor of the 2018 mass shooting at his high school. He talks about advocacy, finding common ground with opponents and the importance of making time for joy amid the pain. Read more on NPR

Octopuses tweak the RNA in their brains to adjust to warmer and cooler waters The California two-spot octopus can edit the RNA in its brain to produce different proteins as ocean temperatures fluctuate, a new study finds. Read more on NPR

Supreme Court sides with Jack Daniel’s in trademark dispute with dog toy maker Jack Daniel’s, the famous Tennessee whiskey company, tried to stop production and marketing of a dog toy shaped and decorated like a Jack Daniel’s bottle but with the name “Bad Spaniels” on the label. Read more on NPR

4 young children are critically wounded in a knife attack in a French Alpine town As bystanders screamed for help, a man with a knife stabbed four young children at a lakeside park in the French Alps. The children suffered life-threatening injuries, and two adults were wounded. Read more on NPR

Wade Goodwyn, longtime NPR correspondent, dies at age 63 Wade Goodwyn had one of public radio’s most recognizable voices but it was his rich writing and keen observations that made him a listener favorite over decades at NPR. Read more on NPR