Health SMART NEWS Scientists Perform First Transfusions of Lab-Grown Blood Will Sullivan SMART NEWS Needle-Free Covid-19 Vaccines Approved in China and India Will Sullivan SMART NEWS This Wearable Ultrasound Sticker Can Continuously Image Organs for 48 Hours Sarah Kuta Environment SMART NEWS Could Genetically Modified Houseplants Clean the Air in Your Home? Alex Chun SMART NEWS New Hampshire Distillery Makes Whiskey Out of Invasive Crabs Margaret Osborne SMART NEWS Polystyrene-Eating 'Superworms' May Provide Clues for Better Recycling Margaret Osborne Education SMART NEWS Tour a Submerged Cave Packed With Paleolithic Art—Without Ever Venturing Underwater Sarah Kuta SMART NEWS NASA’s New Solar Sail Could Soon Navigate in Space Elizabeth Gamillo SCIENCE Lost Cities of the Amazon Discovered From the Air Brian Handwerk