Moss and lichen may grow on solid, undisturbed surfaces, such as trees on your property. And though they aren't necessarily ...

If you’ve spent a lot of time outdoors in New England, you’ve likely crossed paths with, and probably stepped on, lichens.

There are some 15,000 varieties of lichens that cover around 10% of the Earth’s land. Not to be confused with moss, lichens are their own thing — and they actually aren’t plants at all.

Published in the journal IMA Fungus, a new study highlights the potential for lichens to survive and function on the Martian surface, challenging previous assumptions about the uninhabitable ...