Film Lens
In this film, Nigel, an astronaut with Virgin Galactic, explains the physics of space travel. He discusses the role of gravity as a force that must be overcome to reach space, using simple analogies like dropping an apple. Nigel describes how rockets are essential for traveling through the vacuum of space, as airplanes cannot function without air pressure.
The film also covers the concept of suborbital hops, where Nigel will experience a brief trip into space. He contrasts this with the speed required to reach orbit, which is 28,000 kilometers per hour. Additionally, he explains how spacecraft return to Earth, detailing the methods used by Apollo astronauts and the Space Shuttle to slow down and land safely.
Why Watch
- •See how gravity affects space travel.
- •Find out what a suborbital hop involves.
- •Meet Nigel, an astronaut with Virgin Galactic.
Did You Know
•To reach orbit, a spacecraft must travel at 28,000 kilometers per hour.
•Escape velocity from Earth is 40,000 kilometers per hour.
•A trip to the International Space Station can cost around $50 million.
Perfect For
Space enthusiastsAspiring astronautsPhysics students