The best way to build a Death Star is to construct out of an asteroid, according to chief engineer at NASA’s Jet Propulsion Laboratory. The engineer, Brian Muirhead, proposed the method and said that an already-existing asteroid could be the best building block to make the Empire’s ultimate weapon.

Muirhead said an asteroid is capable of providing water, metals and organic compounds needed to build the fictional planet-destroying space station. Currently, Muirhead has been working with NASA on Asteroid Redirect Mission. They are not trying to create a death star, but to land a probe on an asteroid, lift a boulder and put it in orbit around earth’s natural satellite.

The Death Star, a moon-sized space station that has the ability to destroy an entire planet, was a part of the Star Wars movies. It was destroyed by rebels in the movies, but NASA thinks if it was created from an asteroid, it would be difficult to damage it.

Muirhead said there is no need of sending some stuff off a planet to make a Death Star. “You went and got an asteroid and built it from that. It could provide the metals. You have organic compounds, you have water, all the building blocks you would need to build your family Death Star”, he explained.

The NASA engineer also talked about the Asteroid Redirect Mission. He said that a team could fly by 2025 near the moon to collect some samples of the asteroid, which will be put around moon’s orbit. He didn’t reveal whether the space agency will use those samples to build a Death Star.