In our daily lives we might worry about getting into a car crash or having a heart attack, but suddenly getting obliterated by a far off blackhole isn't really on our radar. The universe is actually full of cosmic snipers firing off into space. In this animation, Kurzgesagt explains how gamma-ray bursts are created and what exactly would happen if one was heading for Earth. On the bright side, the possibility of one of these natural Death Stars actually hitting our planet doesn't seem too likely.
Organized, hyper-sexual, an inflated sense of self — It's Always Sunny in Philadelphia's Dennis Reynolds personality reads like a page from the FBI's Crime Classification Manual. This video essay notes the creepy parallels between the character and some of the most notorious serial killers in history.