Meet KIC 8462852, famously known as **"Tabby's Star."** It's an otherwise normal star with one massive mystery: it dims... a *lot*. When a planet passes in front of a star, it might dim the star's light by 1%. But Tabby's Star has been seen to dim by a mind-blowing **22%**! What's more, the dimming isn't regular or predictable. It happens at random times, for random durations. This bizarre behavior was so strange that it led to one of the most exciting and viral hypotheses in modern astronomy: a

What is Tabby's Star and is it flickering because of aliens? | Washington Post