Astronomer and designer of telescopes, The Sidewalk Astronomers
A reprise of our very popular conversation with the delightful 97-year old John Dobson, inventor of the Dobsonian telescope that brings the universe within everyone’s reach. Emily Lakdawalla reports on plans for India’s first mission to Mars. Bill Nye the Science guy has survived the fiscal cliff, but planetary science is still teetering on the edge. Bill’s voice on your answering machine is the new prize in the What’s Up space trivia contest! Bruce Betts and Mat Kaplan have the details.