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String is floppy, so it’s usually a terrible thing to build a tower from. But this tower uses tension and string to hold itself strong!

If you’ve ever dreamed of living on Mars, you’ve probably realised you’ll need a place to live. That’s one reason to be excited about Martian brick research being conducted by scientists in the United States. Recently, a team showed that it’s actually quite easy to make bricks out of Mars dirt.