Texas A&M researchers steer light-propelled metajets in multiple directions

8 articles · Updated · New Atlas · Apr 30

In tests reported in Newton, the microscopic devices levitated and moved laterally using laser light alone, with no fuel, motors or physical contact.
The metasurface-based design redirects light to generate programmable forces, addressing a key challenge in light propulsion: stability and steering, not just forward thrust.
Researchers say the principle could eventually help ultra-light spacecraft reach Alpha Centauri in about 20 years, though scaling it would require far more powerful lasers, tougher materials and precise long-distance beam control.

If light-based propulsion replaces fuel in space, how might this transform the design, autonomy, and purpose of future spacecraft?

What hidden obstacles—technical, ethical, or even unknown physical limits—could derail the dream of laser-propelled interstellar travel?

Could Texas A&M's microscopic light-driven 'metajets' really pave the way for humanity to reach nearby stars within our lifetimes?