A NASA spacecraft sent out to collect a sample of rock and dust from an asteroid has nabbed so much that it's created an unexpected problem. NPR science correspondent Nell Greenfieldboyce shares a cautionary tale of a scientific mission that was almost too successful. For additional info and fun links, check out the episode page).Follow Maddie and Nell on Twitter. Maddie's @maddie_sofia) and Nell's @nell_sci_NPR). Email the show at [email protected]).Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)
