NASA solar system ambassador, outreach adviser to the world’s largest telescope, and go-to guy for all manner of commentary and appearances, from Comedy Central to the Philadelphia Orchestra. He recently narrated the A Space Odyssey concert at the Mann Center for the Performing Arts to honor astronaut and fellow local Col. Guion Bluford Jr.
Eclipse Day Aug. 21, 2017 Derrick Pitts, the Franklin Institute’s chief astronomer, will take your solar eclipse questions live on’s Facebook page at 3 p.m., just after the eclipse’s peak in Philadelphia.