North Korea has apparently launched a satellite to orbit, in a move that the United States and other nations quickly condemned as an attempt to further develop a prohibited long-range missile capability.
Newton's third law of motion states that every action has an equal and opposite reaction. When a rocket a launched, the fuel is pushed backwards, in turn launching the rocket upwards with the same force.
Reusable Rocket Launch Systems: How They Work (Infographic)
AK-Launched Rockets to Study X-rays, Create Polar Mesospheric Cloud
A Black Brant IX sounding rocket launched from the Poker Flat Research Range in Alaska Jan. 19, carrying a mission to measure diffuse X-rays from the local galactic neighborhood. The flight was a success, and the science team is reviewing data. Credit: NASA/Allison Stancil