We can never really be aware of or live in what we call "now". Because it takes time for our brain to process the information about what's happening now… and it takes time for that information to get from the rest of our body to our brain. So, we live in the past!
Though the eruption of Iceland's Eyjafjallajökull volcano caused major air travel problems across Europe, it ranked relatively low on the Volcanic Explosivity Index. Here's a look at biggest volcanic eruptions from across the globe over the past 200 years.
Time travelers' intentions may be noble, but the plans always seem to go awry, leaving history unchanged or even worse than when they left. We list all the ways their attempts go wrong, so you can plan your time travel accordingly.