On
The Early Show, Neil deGrasse Tyson—an astrophysicist and head of New York City's Hayden Planetarium—argues for NASA's relevance, 40 years after man first walked on the moon.
On The Early Show, Neil deGrasse Tyson—an astrophysicist and head of New York City's Hayden Planetarium—argues for NASA's relevance, 40 years after man first walked on the moon.
