Researchers at Texas A&M University have unveiled 'metajets,' a novel propulsion technology that utilizes light to move microscopic devices. By engineering ultrathin metasurfaces with nanoscale patterns, these devices can precisely redirect laser light, generating directional force for propulsion and steering. This breakthrough allows for multi-directional movement, overcoming limitations of traditional light-based propulsion systems.
The ability to precisely control movement using only light, without fuel or physical contact, holds significant implications for future space exploration. While current prototypes are microscopic, the underlying principle is scalable. This technology could dramatically reduce travel times to distant star systems, potentially cutting journeys of tens of thousands of years down to mere decades, although significant engineering challenges remain.
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