When David Popp wrote "Lake Beulah makeover" in the February 2007 Model Railroader, he reported the lichen crumbled to the ...

For the first time, researchers have demonstrated that certain lichen species can survive Mars-like conditions, including ...

Their damp, humid conditions mean they can be a haven for over 200 different species of bryophytes, a group of land plants, and between 100 and 200 species of lichen. They are particularly special ...