  The potential for hosting photosynthetic life on Earth-like planets within
binary/multiple stellar systems was evaluated by modelling the levels of
photosynthetically active radiation (PAR) such planets receive. Combinations of
M and G stars in: (i) close-binary systems; (ii) wide-binary systems and (iii)
three-star systems were investigated and a range of stable radiation
environments found to be possible. These environmental conditions allow for the
possibility of familiar, but also more exotic forms of photosynthetic life,
such as infrared photosynthesisers and organisms specialised for specific
spectral niches.
