Huge white flash in the sky caught on camera in Argentina
Concert-goers in northern Argentina have been treated to a light show with a difference. A suspected meteor lit up the night sky in Salta, as the folk music band Los Tekis performed at an outdoor venue.
Amateur video filmed at the concert shows the suspected meteor falling towards earth and bursting into a dazzling light that turned the night sky blue.
Dr Karl Kruszelnicki from the University of Sydney said not enough money is being spent on researching a researching meteor collision. Speaking on the BBC Radio World Service, he said:
Chillingly we spend more money on making movies about rocks that can hit the earth than we do about looking for the actual rocks.
Dr Kruszelnicki said there were two possible ways to averting a potential meteoric disaster: painting the meteor white, so that the sun exerts more pressure on it, thus pushing past earth, or using a rocket to push it out of the earth's path. He explained:
We send a whole lot of people who normally spend their time painting the whole surface white, over a few years that pressure might nudge it off by a few thousand kilometres over a few years and that would just miss us as opposed to just hitting us.
If we have less time, then we have to think about getting up there with rockets. Pushing the rockets hard against the rock and then firing it and trying to nudge it off with sheer Newtonian mechanics.
Meteor explosion a 'completely abnormal experience'
Tim O'Brien, associate director of the University of Manchester's Jodrell Bank Observatory, has described the metoer which exploded in southern Russia on Friday as a "completely abnormal experience".
It made a sonic boom in the atmosphere, and that hit buildings and shattered windows. That is what seems to have caused the injuries.
It's a completely abnormal experience. This thing appeared in the distance, raced over the horizon and was followed up 30 seconds or a minute later by a huge boom as the shockwave hit the ground. I can imagine that would be very frightening.