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Rising temperatures and lack of protection, both politically and from the environment, may be leading to an increase in farmworker deaths.

How nanotechnology will allow hyper-sonic weapons and aircraft to fly at speeds where the intense heat generated from the friction melts the toughest steel.

3D printing technology, using heat-resistant metal alloys, is revolutionizing trial-and-error rocket development. Whole structures that would have previously required hundreds of distinct components can now be printed in a matter of days. The key to fast engine development is to reduce the number of parts, which reduces the time it takes to assemble the engine and the disruption caused by supply chain delays. The easiest way to do this is to change manufacturing processes. Space companies are now moving away from subtractive manufacturing processes-which remove material to shape a part-to additive manufacturing processes that build up a part by adding material to it bit by bit.