Potatoes are better than human blood for making space concrete bricks, scientists say

StarCrete, a material made of potato starch, salt and simulated Mars or moon dirt, is twice as strong as conventional concrete, its creators say.

Engineers have created an intriguing concrete alternative using simulated Martian or lunar soil, potato starch and salt.

The "space concrete" is twice as strong as conventional concrete, the researchers say. They hope the new material will eventually facilitate construction efforts on the moon and Mars.