Star’s extreme proximity to Sagittarius A* means it could open new window onto black hole’s fundamental properties Astronomers have detected the fastest known star in the Milky Way, hurtling around the supermassive black hole at the heart of the galaxy. The star, called S301, travels at about 25,000km (15,500 miles) per second, 100,000 times faster than a commercial plane. It is also the closest known star to the Milky Way’s central black hole, Sagittarius A*, approaching it around the distance of Saturn to the Sun. Continue reading... from The Guardian https://ift.tt/NGtUWuq via IFTTT
Unions and headteachers say ‘Nando’s-style’ scorecard is worse than schools watchdog’s current regime
England’s schools watchdog, Ofsted, is to press ahead with the introduction of its new inspection regime in November, including a colour-coded report card for parents, despite widespread opposition from headteachers and unions.
An “exceptional” judgment will become the highest of five grades to be awarded across six different inspection areas, as first reported in the Guardian last month, as part of the overhaul prompted by the suicide of the Reading headteacher Ruth Perry after a visit by Ofsted.
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