Question

why space craft returning to earth is protected by heat shield covering it?​

Answer 1

Answer:

Spacecraft are actually designed to make use of this, so the wide heat shield bears the brunt of deceleration as the spacecraft passes through the atmosphere. ... It's also travelling at a much slower speed than a spacecraft re-entering the atmosphere, so it doesn't experience the same forces or heating.A brick, stone or tile heat shield is equally effective but in a different way. These dense materials absorb lots of heat and gradually release it as air circulates around them. The simplest masonry heat shield is a cement board that is separated from the wall by one-inch ceramic spacers.