News tagged with carl sagan

Silence in the sky—but why?

(Phys.org) —Scientists as eminent as Stephen Hawking and Carl Sagan have long believed that humans will one day colonise the universe. But how easy would it be, why would we want to, and why haven't we ...

Aug 26, 2013 4.2 / 5 (71) 213 | with audio podcast

Glorious Dawn: Sagan, Hawking Sing (w/ Video)

Astronomer and long time science advocate Carl Sagan once said that he was "not very good at singing songs." But on Nov. 9 in Washington D.C., his voice could be heard singing about the wonders of universe -- 13 years after ...

Nov 12, 2009 4.6 / 5 (17) 8