Carl Sagan Hopeful of 'Great Triumphs' After Challenger Explosion
Catch up with NBC News Clone on today's hot topic: Carl Sagan Hopeful Great Triumphs After Challenger Explosion N295656 - Breaking News | NBC News Clone. Our editorial team reformatted this story for clarity and speed.
Five days after the Challenger explosion in 1986, Astrophysicist Carl Sagan explains on Meet the Press why the U.S. Space Program could still go on to achieve great triumphs..
