How do reentry capsules work to return spacecraft to Earth?

A reentry capsule is like a special spaceship bubble that helps astronauts come home from space.

Imagine you're riding a super-fast slide down from the sky, that's what happens when a spacecraft returns to Earth. The reentry capsule is like a cozy seat on that slide, protecting you from the hot air and wind rushing past.

When the spaceship comes back toward Earth, it goes through a thick layer of air called the atmosphere. This makes the outside of the capsule really hot, almost like when your hands get warm after rubbing them together fast. But the capsule has special layers that help it stay cool inside, so the astronauts don’t feel all that heat.

Once the spaceship is close enough to Earth, the capsules pop open, and a big parachute helps slow it down, just like how a skydiver uses a parachute to land gently. Then the capsule lands in water or on land, ready for the astronauts to step out and say hello to Earth again!