On a Tuesday afternoon at a Denver public school, a group of elementary students gather around tables piled with Lego bricks, laughing and chatting as they carefully follow instructions to assemble ...

Sending 1 kilogram to Mars will set you back roughly $2.4 million, judging by the cost of the Perseverance mission. If you want to pack up supplies and gear for every conceivable contingency, you’re ...

If you’re designing a robot for a specific purpose, you’re probably ordering fresh parts and going with a clean sheet design. If you’re just building for fun though, you can just go with whatever ...