Rock hunting in Northern Michigan is some of the best in the world. Learn the top spots to find four incredible stones along with some tips on how to spend your time before or after rock hunting.

More than 70 years ago, mathematician Alan Turing proposed a mechanism that explained how patterns could emerge from bland uniformity. Scientists are still using his model—and adding new twists ...

In July, for instance, the rover found a rock patterned after a different African animal. The “leopard spots” in the rock could be evidence of microbial life at some point in Mars’ past.

Good spots to start are Van’s Beach and North Beach. It can take your eyes awhile to adjust to slag spotting, but once you find a piece or two, you’ll be hooked. Photo by Allison Jarrell ...