In to the space, there is no air to push rocket up and around. Then how it work there?
static.interestingengineering.com
When engines and rockets reaches in space, It follows according to the third law of motion given by great scientist Isaac Newton. As per the law, every action produces an equal and opposite reaction. In the same way when a rocket thrust fuel out from one end, it helps propels the rocket forward. Thus, no air is required.
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NASA says it is a common principal and can be experienced easily on Earth. If you stand on a wheel board and throw a ball or something like that to the forward direction, that force will push us and the wheel board back. Though effect will be negotiable because our weight on the wheel is greater than that of the ball, so, we will not move so far that in proportion of force we applied during throwing the ball.
www.outerplaces.com
Once it was a challenge for engineers, when they started designing space engines. Small amount of thrust can push the spacecraft forward, but it takes enormous amount of energy and fuel. But more fuel means more weight, which means more thrust, more force and more fuel. It also affect to the cost of a mission.
Source Credit: livescience.com
so simple.... :)
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