The night sky will eventually be completely black.
It probably won’t happen for a few billion years, but still. As the Milky Way galaxy (which we live in) merges with others, others will recede from view. According to Scientific American, “The quickening expansion will eventually pull galaxies apart fast than light, causing them to drop out of view.”
This would, in effect, erase any signs that the big bang ever existed. According to Scientific American, “To our distant descendants, the universe will look like a small puddle of stars in an endless, changeless void.”
Nice. I’ve always wanted to experience an endless, changeless void other than the line at the DMV.
Meteors can strike Earth whenever wherever without warning.
In 2013, 400 people were injured after a meteorite exploded in the mountains over Russia.
So anyway, yeah, they can just fall at any moment, rain down on the Earth and case massive destruction, and we might not know until it’s too late. Sweet dreams!
A solar superstorm almost changed all of life forever as we know it.
In July of 2012, the Earth narrowly missed a brush with an “extreme solar storm,” the most powerful that we’ve seen in more than 150 years. Two years later, Daniel Baker of the University of Colorado said, “If it had hit, we would still be picking up the pieces.”
Solar storms are a threat to all forms of “high-technology.” It begins with an explosion, then x-rays and extreme UV radiation would have reached Earth at light speed. It would have caused radio blackouts and GPS navigation errors on a massive scale. Then satellites would have been blasted with energy and gotten damaged. The whole world would have been without power.
Luckily, Earth happened to not be in the spot that this superstorm hit in 2012. But it could have been!
The next fact might be even scarier, but I included a GIF of a sloth…