The sun’s closest neighbour, Proxima Centauri is not a lone star. A century after its discovery, our team has just demonstrated that this red dwarf is actually bound by gravity to the pair of stars Alpha Centauri, around which it orbits every 550,000 years.

Astronomical observations are about to deliver the very first telescopic image of a giant black hole. The mass of data collected in one night, exceeding everything that has ever been done in any scientific field, should provide a recomposed image during 2018. All this, forty years after the first numerical simulations.

Shaking the world of cosmology is a debate between the proponents of cosmic inflation, in the large majority, and a handful of physicists thinking outside the box and highlighting unique solutions for describing the primordial Universe. For the moment, there is insufficient data to plump for either side, believes cosmologist Robert Brandenberger. Interview conducted by Philippe Pajot.

Who is Ulugh Beg? A prince, since he governed a province in the central Asian empire built by his grandfather Tamerlan. Above all, he was a scholar who founded the Samarkand astronomical observatory, whose work predated that of the best astronomers in Europe one and a half centuries later. Recalling a Forgotten Astronomer

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Photo Bernard Martinez

DR. DOMINIQUE LEGLU

Managing Editor

 

La Recherche, founded in 1970, is a major source of science information in France for science-interested citizens, leading universities and research institutions. The site Researchinfrance.com publishes the English version of a series of articles about the most advanced achievements appearing in our printed French version.

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November 11, 2018

November 11, 2018

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