ISRO Achieves In-Space Restart of Indigenous Cryogenic Engine

ISRO, India's space agency, has achieved something really cool!

They managed to turn a special rocket engine, called a cryogenic engine, back on while it was already in space.

These engines are super powerful but tricky because they use fuels that have to be kept incredibly cold, like liquid hydrogen at -253°C.

In space, keeping the fuel in the right place for the engine to start again is like trying to pour juice from a floating carton.

ISRO used special little thrusters to push the fuel to the bottom of the tank.

They even used three ignitors, like tiny matches, to make sure it lit up in the vacuum of space.

This success means ISRO can now send rockets that can drop off satellites in different paths, like a bus making multiple stops.

It also helps make space cleaner by allowing used engine parts to be safely brought back down.

This is a big step for India's space adventures!