Looks like a star out there ("KIC 8462852") is surrounded by something that makes its light levels fluctuate chaotically. It might be a huge field of comets, sucked in by a passing star - or it might be alien megastructures blocking the light from the star.....like a kind of Ringworld.
I see the star in question also has a companion dwarf star. Perhaps that has something to do with it, too.
But it's causing quite a stir. It's 454 parsecs / 1480.7 light years away.