Four-wave mixing A weak optical signal (red) from a spacecraft transmitter can be amplified noise-free when it encounters two pump waves (blue and green) in a receiver on Earth. (Courtesy: Chalmers ...

A supposedly stable belt of radiation 7000 km above the Earth’s surface may in fact be producing damaging bursts of ...

The Arecibo Observatory’s “uniquely powerful electromagnetic radiation environment” is the most likely initial cause of its destruction and collapse in December 2020. That’s according to a new report ...

Paliya explains why it is essential for researchers to know about prizes such as the IOP highly cited paper award ...

Located about 548 light-years away, in the constellation Orion, Betelgeuse is the 10 th brightest star in the night sky.

Interactions between these as-yet hypothetical particles and neutron stars' strong magnetic field would produce photons that ...

Siloton’s handheld OCT system could soon be used for home-based monitoring of retinal disease, and may one day find its way onto future space missions ...

Different neutron states could explain why different experiments produce different figures for how long neutrons survive ...

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Thomson will become the 17th director-general of the CERN particle-physics laboratory when he takes up the position in 2026 ...