6. Phantom Suns
Also known colloquially as sun dogs and scientifically as parhelia, it’s not Star Wars predicting our future so much as it is light bending through ice crystals until it looks like our sun has another two suns on either side.
7. Sea Sparkle
When disturbed by particularly rough seas or by crashing waves in parts of the Indian Ocean, some dinoflagellates emit light, making the water look like it’s glowing or sparkling.
11. Ball Lightning
For everything from UFOs and WWII’s Foo Fighters to supposed spirits and erratically moving skylights, most explanations amount to simple lightning or St. Elmo’s fire — natural phenomena that might be atmospherically distorted to appear to be moving faster than possible.
12. Impossible Objects
These are traditionally man-made since they add a third dimension to two-dimensional objects: for example, the triangle sculpture on the left should not be able to twist like that, but the close examination (on the right) proves it truly can’t twist like that. Other popular impossible objects include blivets and Penrose stairs.