[ This just in from the Daily Mail’s Cosmosology Bureau ]
It came from a distant constellation 50,000 light years away – but its impact could be seen with the human eye.
Earth has been zapped by a ‘giant flare’ which was the equivalent of half a million years of sunlight in just a fraction of a second.
So powerful was the energy pulse that it bounced off the Moon and lit up the Earth’s atmosphere,
Nasa said.