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 ...

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

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

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

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

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“We decided to look at the probability of a given string of letters being typed by a finite number of monkeys within a finite ...

Hybrid model A new description of nuclei combines the quark–gluon model of particle physics with the proton–neutron ...

Adaptive radiotherapy – in which a patient’s treatment is regularly replanned throughout their course of therapy – can ...

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Within GRAVITY’s combined observations, Xuan’s team discovered that Gliese 229 B was not a single object, but a pair of brown ...

Flatter nanocrystals are unexpectedly good at getting ligands to attach to them, which could have applications in electronics ...