Agnilet

Agnilet is the semi-cryogenic rocket engine made by the Indian space startup Agnikul Cosmos. It is the first fully 3D printed rocket engine to be successfully tested. This breakthrough is significant since the entire engine is just one piece of hardware not requiring assembling of parts. It takes less than four days to produce since there is no need for complex assemblage. It can carry up to 100 kilos of payloads into lower earth orbit.