KNOW WHY AIRPLANES CAN'T FLY IN SPACE !

Airplanes can easily fly in the sky but one question that might come to your mind is why it can't reach space? In this article, we will discuss the reasons that are stopping airplanes to fly in space.

1.) Earth's gravity: In order to reach space, the airplane needs to escape the earth's gravity. This requires a minimum speed of Mach 33 (25,000 mph). The current world record for the fastest plane is only Mach 6.7 (5,140 mph).

 2.) Less/ No oxygen: As the altitude rises the amount of oxygen reduces. The reduction in oxygen leads to difficulty in combustion. This leads to a reduction in thrust.

3.) No lift: At a higher altitude, the air isn’t dense enough to support a large airplane. It may produce some lift, but it won’t be enough to prevent the airplane from falling down to a lower altitude where the air is denser. In space, of course, there is no air whatsoever. Without the presence of air, neither a large airplane nor a small airplane will produce lift. There’s simply no air to travel over and under an airplane’s wings in space, which is the main reason airplanes can’t fly in space.

On the other hand, rockets do not need outside air to lift them. 

Rockets use some of the basic laws of nature. One of these is called Newton's third law. It says for every action there is an equal and opposite reaction. Most rockets use high-speed gases. These gases come out of the burning rocket fuel. These gases push the rockets up and away from Earth. They push the rocket up into space where there is no air. Remember: rockets do not need air to lift them up as planes do. Thanks for reading the article.