If you've ever walked across the historic Chain of Rocks Bridge or even driven along Interstate 270 near the ...

Petoskey stones have a larger, more symmetrical hexagonal pattern than Charlevoix stones. Rock collectors in northern ...

They are made mostly of rock and metals like nickel and iron. These materials are similar to what is found in the crust and mantle of Earth and other rocky planets.

Yooperlites are rocks that fluoresce in the dark under ultraviolet light. They became known when a UP resident discovered them in 2017, according to the Michigan Department of Environment, Great ...

Studying rocks from Earth's earliest history could give a glimpse into how the planet may have looked—how its roiling magma oceans gave way to tectonic plates—and even how life got started ...

Meanwhile, rocks in Jack Hills Australia were found to be 4.39 billion years old in 2014. “This confirms our view of how the Earth cooled and became habitable.