OK so the polar regions are at it again. A writer on Note rounded up three genuinely strange things people have witnessed down at the ends of the Earth, and number one is the classic, the legend, the thing that has freaked out explorers for over a century: bloodfalls. That's when bright red water comes gushing out of a glacier like the ice itself is wounded, and no, it's not blood, but I promise the real explanation is almost better.

The star of the show is Blood Falls in Antarctica, that famous rust-colored waterfall pouring out of the Taylor Glacier. Scientists traced the water back to a pocket of ancient salty brine that's been sealed under the ice for something like a million years, and the red comes from iron in the water the moment it hits oxygen and basically rusts instantly. So it's a waterfall of million-year-old water turning to rust in real time. the glacier is bleeding iron. That is a fact about the world now and I love it.

The full piece on Note walks through three of these polar oddities, and they all share one vibe: stuff that looks like it belongs in a horror movie and is actually just chemistry and physics doing their weird little jobs in freezing temperatures.

Because that's what gets me about the poles. Everything down there is so far outside our normal experience that ordinary processes turn into full optical illusions. Red water looks like a wound. It's iron. Weird lights and strange formations look otherworldly, and they're usually just ice and sun and time doing something our eyes have zero reference frame for.

And there's a bonus layer here that I cannot stop thinking about. That Blood Falls brine had been cut off from the outside world for an absurd stretch of time, dark and cold and salty, and researchers found microbes living in it anyway. Life just quietly persisting in a sealed pocket under a glacier, doing its thing with no sunlight, for possibly a million years. If that doesn't rearrange your brain a little then I don't know what will.

Anyway, file this next to the Lycurgus cup and the Taos Hum on my ever-growing list of things that sound fake, get investigated, and turn out to be real in the most delightful way. The poles keep handing us this stuff and I will keep writing it down. Joy is worth documenting, even when it's rusty.