Blackholes in your backyard

 作者:颛孙虻     |      日期:2019-03-15 03:06:00
By Hazel Muir It is the year 1868, the scene a tranquil valley in Donegal, Ireland. A man is tramping across the peat bogs. Glancing skywards, he sees a storm brewing on the horizon and decides to head for home. As he retraces his steps, something makes him turn around, and he sees the strangest sight of his life. A bright red glowing orb half a metre across is floating down a nearby hillside. It bobs over the valley, then vanishes near a stream. No sound, no fire, no explosion – yet the ground beneath the red sphere’s path has been churned up and torn to pieces. “The glowing red orb left a square hole about 6 metres wide and ploughed up a 100-metre trench” Cut to 2004, when a US government physicist finds a report of the incident, now gathering dust in the British Library in London. Though he has seen similar reports of ball lightning, there’s something very odd about this one. Bit by bit, he comes to the conclusion that the glowing apparition has the hallmarks of something literally out of this world – an ancient black hole. It sounds like a bizarre tale, but an Irishman called Michael Fitzgerald really did report a strange red glow to the Royal Society in 1868, and now physicist Pace VanDevender says he has gone through all the options,