Humans are working towards establishing a colony on Mars
Human settlements on Mars are one step closer after scientists created ‘space bricks’.
These could be created on the Red Planet by mixing astronauts’ urine with the dusty Martian soil.
The bricks are made by mixing dust with urea, the main compound in urine, and bacteria as well guar gum and nickel chloride.
The slurry can be poured into moulds of any shape and over a few days the bacteria convert the urea into calcium carbonate crystals.
These crystals, as well as biopolymers which are secreted by the bacteria, act as cement that holds the soil particles together.
The new bricks, which were developed by researchers from the Indian Institute of Science, are less porous than others which researchers have tried to use to make Martian bricks.
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