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Major supercluster of galaxies found hidden by the Milky Way

17 November 2016 Astronomy Now

An international team of astronomers has discovered a previously unknown major concentration of galaxies in the constellation Vela, which they have dubbed the Vela supercluster. The gravitational attraction from this large mass concentration in our cosmic neighbourhood may have an important effect on the motion of our Local Group of galaxies.

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Oldest stars ever seen found near Milky Way centre

12 November 2015 Astronomy Now

Astronomers have discovered the oldest stars ever seen, dating from before the Milky Way Galaxy formed, when the universe was just 300 million years old. The stars, found near the centre of the Milky Way, are surprisingly pure but contain material from an even earlier star, which died in an enormous explosion called a hypernova.

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Galaxy’s cannibalistic snacking habits revealed

23 May 2015 Astronomy Now

A team of Australian and Spanish astronomers have caught a greedy galaxy gobbling on its neighbours and leaving crumbs of evidence about its dietary past. Their successful and novel approach to investigating how galaxies grow is being used in a new program to further refine the best models of galaxy evolution.