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Astronomers confirm faintest early-universe galaxy ever detected

20 May 2016 Astronomy Now

An international team of scientists has detected and confirmed the faintest early-universe galaxy ever using the ten-metre Keck II telescope on the summit on Maunakea, Hawaii. The team analysed three separate images of the object gravitationally lensed by a foreground galaxy cluster, revealing the distant galaxy as it was 13 billion years ago.

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Most distant massive galaxy cluster identified

8 January 2016 Astronomy Now

The early universe was a chaotic mess of gas and matter that only began to coalesce into distinct galaxies hundreds of millions of years after the Big Bang. It would take several billion more years for such galaxies to assemble into massive galaxy clusters — or so scientists had thought. Now astronomers have detected a massive, sprawling, churning galaxy cluster that formed only 3.8 billion years after the Big Bang, some 10 billion light years from Earth.