SMRTR Science & EngineeringMar 25, 2025Interesting Engineering

Ultra-thin lightsails with billions of tiny holes to enable high-speed space travel

SMRTR summary

Researchers from TU Delft and Brown University have developed ultra-thin, scalable lightsails for potential high-speed space travel. The 200 nanometer-thin prototype, if scaled up, could span seven football fields while remaining just 1mm thick, potentially enabling probes to reach Mars as quickly as international mail delivery.

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