COVID-19 Supplies Shortage, Citizen Science Month, Mercury Discovery. April 3, 2020, Part 1 Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email This colorful view of Mercury was produced by using images from the color base map imaging campaign during MESSENGER's primary mission. ( NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington ) Hosted by Ira Flatow Produced by Science Friday and WNYC Studios