All About Space

Could we take a plane to space?

- Dr Chris James, ARC DECRA fellow, Centre for Hypersonic­s, School of Mechanical and Mining Engineerin­g at the University of Queensland

There are many reasons we can’t just use an aircraft to get into space. A major one is that the higher up we go, the less air there is – or specifical­ly the less ‘oxygen’ there is in the air. The engine is what helps the aircraft fly. And just like car engines, aircraft engines need oxygen to work. Aircraft suck air in at the front using big fans on either side. They then mix this air with jet fuel, creating a mixture of fuel and oxygen which is then burned, making the air hotter. The hot air is then shot out the back at a very high speed, pushing the aircraft forward. But an aircraft trying to fly too close to space, where there isn’t enough oxygen, would be like a person trying to breathe in a room with no air in it. This is why we need rockets to get to space. The big difference between rocket engines and jet engines used in aircraft is rocket engines do not need to get oxygen from the air. Instead, they carry their own oxygen with them.

 ?? ?? Above: Planes can’t fly in space as there’s no oxygen
Above: Planes can’t fly in space as there’s no oxygen
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