An “alien plant” fossil discovered 55 years ago just outside of an abandoned town in Utah has no relation to any currently existing or extinct species, scientists revealed in a study last month.

A "strange" prehistoric plant species is the lone representative of a mysterious group of organisms that no longer exists, scientists have discovered. The first evidence of the species—in the form of ...

On Earth, plants are green thanks to our Sun’s light—but Kepler-186f orbits a cooler, redder star. Here’s why alien ...