While the 1970s saw the last human to walk on the Moon, a sense of optimism abounded about our place in space and what the future might hold for us among the stars. From the launch of the twin Voyager probes to the Arecibo Message to space colony activism, young people (and old) were inspired with a sense of possibility about how space exploration could transform humanity.  Join Boing Boing co-editor and IFTF research director David Pescovitz in conversation with Dent:Space curator Ariel Waldman in discussion about why the ideas and efforts of 1970s space exploration are more relevant now than ever.