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
Schools combining incentives with sanctions saw better response than those relying purely on punishment
Pizza parties and iPads are being offered to pupils as incentives to improve school attendance, according to a new report which says sanctions alone are less likely to work.
While some schools in England are using fines, detentions and letters home to crack down on absence, others prefer a rewards-based approach, with prize draws for bikes and iPads, trips and “praise stamps” which pupils collect then trade in for chocolates or stationery.
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