Neil deGrasse Tyson: The case for human explorers in space
Monday, March 26, 2012 - 15:31
in Astronomy & Space
In 50 years, humans will have been to Mars, will be able to go on tourist trips to the moon and will have access to gadgets and tools that are yet undreamt of — if the U.S. chooses to double NASA's budget, astrophysicist Neil deGrasse Tyson predicts.