Recycling-focused technology firm says its Scrap Science app offers affordable metals identification and workforce training tools. Beyond materials identification, employers can use the Scrap Science ...

It's time now for our science news roundup from Short Wave, NPR's science podcast. I am joined by the show's two hosts, Regina Barber and Emily Kwong. Hi, y'all. EMILY KWONG, BYLINE: Hi. REGINA BARBER ...