Ancient horsetail plants, surviving for 400 million years, are revealing Earth's climate history. Their unique water ...

Perseverance rover found a rock on Mars named Phippsaksla with so much iron and nickel that it could be a meteorite.

Amateur sky watchers believe a meteorite fell to earth in northeast Michigan Sunday morning, Nov. 23, and many people have posted video online of the space debris streaking overhead. Michigan Storm ...