Purpose: The stability of a triamcinolone acetonide mouthwash and its efficacy in treating oral lichen planus are described. Results: The mouthwash had a satisfactory shelf life and was well ...

A recent experiment has shown that certain lichen species can remain metabolically active in an environment similar to that found on Mars. The study challenges assumptions that Mars is entirely ...

Cetraria aculeata superimposed on Mars. Credit: Lichen: Skubała et al. Design: Pensoft Publishers. In a groundbreaking study, scientists have shown that certain types of lichens—organisms known ...