Sometimes, you must have thought, how astronauts return to earth

In india, there are two Launchpad

First in tiruvantipuram , and other is in Andhra Pradesh shri Hari Kota

For sending space craft, there are several space centres

But on moon there is no space centre yet

But , space craft return to earth easily

All this is based on escape velocity

Earth is escape velocity is 11.2 kilometres per second

The engine in the space craft is so powerful, that space craft can reach 2.4 kilometres per second

That’s why spacecrafts easily return to earth

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