With large swaths of the East Coast blanketed with smog, many are worried about their health. Mangala Narasimhan, director of critical care services at Northwell Health, offers some peace of mind with a handful of expert tips for coping with poor air quality.
A NASA spacecraft will fly by Earth on Sunday and drop off what is expected to be at least a cupful of rubble it grabbed from the asteroid Bennu, closing out a seven-year quest.
