News

Sneak peek of Gaia’s sky in colour

23 August 2017 Astronomy Now

While surveying the positions of over a billion stars, ESA’s Gaia mission is also measuring their colour, a key diagnostic to study the physical properties of stars. A new image provides a preview of Gaia’s first full-colour all-sky map, which will be unleashed in its highest resolution with the next data release in 2018.

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Astronomers discover ‘heavy metal’ supernova rocking out

2 August 2017 Astronomy Now

Many rock stars don’t like to play by the rules, and a cosmic one is no exception. A team of astronomers has discovered that an extraordinarily bright supernova occurred in a surprising location. This “heavy metal” supernova discovery challenges current ideas of how and where such super-charged supernovas occur.

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Artificial brain helps Gaia catch speeding stars

27 June 2017 Astronomy Now

With the help of software that mimics a human brain, ESA’s Gaia satellite spotted six stars zipping at high speed from the centre of our galaxy to its outskirts. This could provide key information about some of the most obscure regions of the Milky Way.

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Mapping the family tree of stars

25 February 2017 Stephen Clark

Astronomers are borrowing principles applied in biology and archaeology to build a family tree of the stars in the galaxy. By studying chemical signatures found in the stars, they are piecing together these evolutionary trees looking at how the stars formed and how they are connected to each other.