Nukes in space: A bad idea in the 1960s, an even worse one now

The US and Japan are sponsoring a resolution for debate by the United Nations security council which—if passed—will reaffirm international commitments to the 1967 outer space treaty (OST) forbidding the deployment and ...

Conjoined 'racetracks' make new optical device possible

When we last checked in with Caltech's Kerry Vahala three years ago, his lab had recently reported the development of a new optical device called a turnkey frequency microcomb that has applications in digital communications, ...

New nanoparticle source generates high-frequency light

High-frequency light is useful. The higher the frequency of light, the shorter its wavelength—and the shorter the wavelength, the smaller the objects and details the light can be used to see.

Sculpting quantum materials for the electronics of the future

The development of new information and communication technologies poses new challenges to scientists and industry. Designing new quantum materials—whose exceptional properties stem from quantum physics—is the most promising ...

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