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Astronomers reveal most detailed atlas of the Milky Way

The European Space Agency (ESA) has released the latest star map of the Milky Way taken by its €450m Gaia mission. Gaia’s third data set, released, contains high-precision measurements of nearly 2 billion stars, allowing astronomers to trace the various populations of older and younger stars out towards the very edge of our galaxy the so-called “galactic anticenter”.

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Scientists develop an extremely precise measurement of the radius of the proton using hydrogen spectroscopy

A new and extremely precise measurement of the radius of the proton using hydrogen spectroscopy has been made by Thomas Udem, Randolf Pohl and colleagues in at the Max Planck Institute for Quantum Optics (MPQ) in Germany. Their result is similar to a measurement made ten years ago using muonic hydrogen.

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Borexino spots solar neutrinos from elusive fusion cycle

Neutrinos produced by the elusive carbon–nitrogen–oxygen (CNO) cycle in the Sun have been observed for the first time – confirming a theory first proposed over 80 years ago. The observation was made by physicists working on Italy’s Borexino detector and provides an important insight into how stars power themselves by converting hydrogen into helium.

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Gold nanotubes and infrared light could treat asbestos-related cancer

Gold nanotubes can destroy cancer cells, according to physicists and medical researchers at the University of Cambridge and the University of Leeds. They found that their nanotubes, which were tuned to have strong near-infrared absorption, can enter mesothelioma cells and destroy them when heated with laser light.

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