NASA Scientist: 'Mars Could be Biologically Alive'

This article is another one talking about the methane on Mars and its potential meaning for possible life on Mars due to methane having a short lifespan in an atmosphere. It was written in 1995, and talks about how the methane could have a biological origin or be from geochemical origins. Apparently, many living things on Earth produce methane as a biproduct while either living or while they are composing after death. They also found hydrogen in the atmosphere, which could be taken as an indication of water in the polar ice caps that melted and turned into water vapor.