This grant funds a project by PRX Incorporated, public radio's largest distribution marketplace, to experiment with new ways to bring high-quality science-themed audio programming to new, younger audiences through the radio and the web. PRX will improve the sound, production, and general appeal of its hour-long science programming, while promoting these shows as specials and excerpting segments for short-term use on podcasts, remixes, blogs, web, and social media sites. In addition, PRX will create three new science podcasts for 99% Invisible, a short-form podcast that addresses creativity and innovation. PRX will also begin integrating existing science content into Public Radio Remix: an edgy, experimental mash-up that creates "a new flow of listening" aimed at younger listeners. Finally, working closely with science advisors, PRX will issue an "open call" for STEM programs and proposals-either identifying exciting new shows that may be off the traditional radar screen and helping them with enhanced production techniques to improve distribution, or taking previously aired or archival work that can be revised, edited, updated, or annotated to make it more timely and accessible for broadcast or streaming. This wide range of PRX initiatives aim to engage an entirely new community and to learn from them, while advancing public understanding of science.