It was a fantasy world plucked from George Lucas' imagine.But life could thrive on a planet like Luke Skywalker's Tatooine with its two suns, scientists have claimed.
However, the legendary director did get one detail wrong in his famous movies - the trees would have had black leaves.
Scientists have discovered that the temperature of a star determines its colour - and at different temperatures life evolves in very different ways.
Photosynthesis - the process by which plants produce energy from sunlight - is altered when the light colour is changed.
Scientists carried out computer simulations to model Earth-like planets either orbiting two stars close together or one of two widely separated stars.
They found that plants with dim red dwarf suns - like Tatooine - are likely to have black or grey plants.
The research is significant because it means scientists hunting for alien life should not rule out planets with multiple suns as uninhabitable.
Many multi-star systems contain 'red dwarfs'. These are cool, faint stars that are the most common star type in our galaxy, the Milky Way.
Around half of all red dwarfs, and a quarter of Sun-like stars, exist in multiple systems. Read More
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