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Light echoes give clues to young star’s protoplanetary disc

27 April 2016 Astronomy Now

Protoplanetary discs are ‘doughnuts’ of gas and dust surrounding young stars, the sites where planets form over the course of millions of years. Researchers studying the one-million-year-old infant star YLW 16B, some 400 light-years from Earth, were able to determine the distance from the star to the inner rim of its surrounding protoplanetary disc by observing its light echo.

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Chilean astronomical site becomes world’s first international dark sky sanctuary

12 August 2015 Astronomy Now

The International Dark-Sky Association has just announced that the site of the Association of Universities for Research in Astronomy (AURA) Observatory in the Elqui Valley of northern Chile has been recognised and designated as the first International Dark Sky Sanctuary in the world. The site will be known as the “Gabriela Mistral Dark Sky Sanctuary” after the famed Chilean poet.