29: Tens of thousands of black holes in Milky Way's centre

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*Tens of thousands of black holes in Milky Way's centre Astronomers have detected a dozen stellar mass black holes orbiting close to the supermassive black hole -- Sagittarius A* -- at the centre of the Milky Way Galaxy. The findings support a decades-old hypothesis that there should be tens of thousands of stellar mass black holes at the galactic centre. 

*First age map of the heart of the Milky Way The first large-scale age-map of the Milky Way shows that a period of star formation lasting around 4 billion years created the complex structure at the heart of our galaxy. Previous studies have shown that the bulge hosts two components -- a population of metal-poor stars that have a spherical distribution -- and a population of metal-rich stars that form an elongated bar with a “waist,” like an X or a bi-lobed peanut. 

*Discovery of the most distant star ever seen. Astronomers have spotted the most distant star they’ve ever seen. The star dubbed Icarus is a hot blue supergiant located some 9.34 billion light-years away in the constellation Leo. 

*Dragon flies to the International Space Station The SpaceX Dragon CRS-14 cargo ship has successfully docked with the International Space Station carrying fresh supplies and equipment for the six Expedition 55 crew members aboard the orbiting outpost. You tube video url: https://www.youtube.com/watch?v=C8TbJd4-2_M\ 

*The Science Report Viruses infecting people today date back to the first vertebrates -- and perhaps even further back to the first animals. The link between asthma and childhood bone fractures. The Facebook privacy scandal far worse that first revealed. There may be more benefits to deleting your Facebook account than just protecting your private data. The genetic history of the Blue Whale. 

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