A failed galaxy could solve the dark matter mystery : Short Wave - NPR

A family spokesperson said Spencer died Monday after battling cancer for several years. As Dee, she was a deadpan, wisecracking sister on What's Happening!! Spencer later became a veterinarian.

The U.S. is giving $1.6 million to researchers to study how the hepatitis B vaccine affects newborns in Guinea-Bissau. Local officials say the trial is suspended. U.S. officials say that's inaccurate.