Wednesday, 24 July, 2002, 02:29 GMT 03:29 UK Space rock 'on collision course' An asteroid could devastate Earth By Dr David Whitehouse BBC News Online science editor An asteroid discovered just weeks ago has become the most threatening object yet detected in space. A preliminary orbit suggests that 2002 NT7 is on an impact course with Earth and could strike the planet on 1 February, 2019 - although the uncertainties are large. Astronomers have given the object a rating on the so-called Palermo technical scale of threat of 0.06, making NT7 the first object to...
