If and when the nuclear holocaust begins to bring down society as we know it, it isn't the initial blasts you should be worrying about. Carl Sagan and other scientists once hypothesised that dust blocking out the Sun could bring a nuclear winter. It probably happened before - to the dinosaurs.
Tagged With extinctions
Predicting the future is near impossible -- but that doesn‘t stop us all from having a red hot go. Human beings have been predicting the future since the beginning of history and the results range from the hilarious to the downright uncanny.
One thing all future predictions have in common: they‘re rooted in our current understanding of how the world works. It‘s difficult to escape that mindset. We have no idea how technology will evolve, so our ideas are connected to the technology of today.
Several million years ago, a series of nearby supernovae explosions lit up the sky, rained radioactive particles down on our planet and might have kickstarted a major climactic shift. That's according to a pair of studies published today in Nature, which link radioactive debris spread across the seafloor to cosmic fireworks hundreds of light years away.