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Lasers steer tiny metajets in three dimensions (Level A1) — white light bulb turned on during night time

Lasers steer tiny metajets in three dimensionsCEFR A1

28 Apr 2026

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Adapted from Texas A&M University, Futurity • CC BY 4.0

Photo by Philip Myrtorp, Unsplash

Level A1 – Beginner
2 min
70 words
  • Researchers use lasers to precisely move tiny devices.
  • The devices are called metajets.
  • The metajets can move in three dimensions.
  • This is a new step in optical propulsion.
  • Lasers push the metajets like tiny balls.
  • The parts are made from thin metasurfaces.
  • Scientists tested metajets in a fluid.
  • The devices are very small, smaller than hair.
  • Researchers hope to test in microgravity later.
  • The idea could help future space travel.

Difficult words

  • laser — a strong beam of focused light
    lasers
  • device — a small machine or tool for work
    devices
  • metajet — a tiny device moved by light beams
    metajets
  • propulsion — a force that makes something move forward
  • metasurface — a very thin engineered surface that controls light
    metasurfaces
  • microgravity — very low gravity, like in space

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Have you ever used a laser?
  • Would you like to see very small devices?
  • Would you like to travel in space?

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