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Lasers

Researchers developed a way to weld pieces of brittle ceramics together using a laser that fires a million times per second.

Yuen Yiu, Staff Writer

Regular improvements in so-called optical clocks are setting the stage for a redefinition of the second and powering searches for new laws of physics.

Catherine Meyers, Editor

Person standing by a barbed wire fence with their back to the camera is pointing a green laser at an airplane in flight.

New proof of concept could guard against the disorienting effects of laser pointers invading the cockpit.

Chris Gorski, Editor

Innovations in laser methods and technology won Nobel Prizes in 2017 and 2018, but not all lasers are the same.

Claire Cleveland, Contributor

Optical tweezers developed by a new Nobel laureate could potentially be used on slightly larger objects, but not spacecraft.

Ramin Skibba, Contributor

Two independent studies yield new insights into spectacular weather phenomena on our neighbor planets.

Yuen Yiu, Staff Writer

Physicists show how switching positive and negative charges in graphene could make the first quantum time mirror.

Charles Q. Choi, Contributor

The UN designated 2015 as the International Year of Light. The closing ceremony was held in Merida, Mexico.

Inside Science Contributor

Neurons

New technique may allow more precise and less invasive study of the brain.

Charles Q. Choi, Contributor

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