Frank Borman, the astronaut on the review committee ... Following the troubles of Apollo 13, Apollo 18 and 19 were scrubbed as well. Twelve American men are the only humans to walk on the surface ...

The cost of sending astronauts to the Moon was astronomical ... leading to the cancellation of Apollo 18, 19, and 20. Once NASA had eliminated the Appolo missions, it redirected its resources ...

CAPE KENNEDY -- America's first three Apollo astronauts died only 218 feet off the ground Friday night in a blazing explosion inside their space capsule atop its launch pad. An electrical spark ...

With two months to go before flight, the Apollo 13 prime crew of James Lovell, Thomas Mattingly, Fred Haise, and backups John ...