Did you hear about the weird holes scientists found at the bottom of Lake Michigan?

Divers exploring the lake stumbled across perfectly round pits that look like something out of a sci-fi movie.

At first, people joked it might be aliens or underwater crop circles, but the truth is still pretty mysterious.

Scientists think the holes might be formed by methane gas escaping from beneath the lakebed, or maybe by strong underwater currents eroding the sand.

What’s even cooler is that these holes are home to unique ecosystems with strange microorganisms. It’s like a whole underwater world we’re just beginning to explore!