Question

Why do astronauts ride spacecraft, instead of aeroplanes when going to space?

Answer 1

Answer:

1. The bottom line is that airplanes can't fly in space because there is no air in space.
2. Airplanes rely on air to produce both lift and propulsion.
3. Since there isn't any air in space, airplanes must stay within the Earth's atmosphere.

Explanation:

1. Rockets carry their own oxidizer.
2. Prop planes, jets, scramjets and everything in between use the air in the atmosphere to combust their fuel, which is why they can't fly in space.
3. Rockets carry their own oxygen so they don't need their surroundings to contain any.