See inside Marine One, the soundproof presidential helicopter that can seat 14 people and deploy anti-missile defenses
With a landing zone on the White House lawn, Marine One is often the most convenient way for presidents to get from place to ...
How NASA's Lunar Trailblazer will make a looping voyage to the moon
Before arriving at the moon, the small satellite mission will use the gravity of the sun, Earth, and moon over several months ...