They say three s a crowd, but it seems that isn t much of a problem in the far reaches of our galaxy.

For the first time ever, NASA s Hubble Space Telescope has identified a three-body system using a gravitational microlensing technique.

The three bodies were first spotted in 2007, but it has taken nine years, a new telescope and a trick of nature to categorically define the third object as a second dwarf star.

The planet and an orbiting pair of stars are located 8000 light-years away from earth and it takes roughly seven years for the planet to complete an orbit around the two stars.

The paper s first author, David Bennett of the NASA Space Flight centre explained: The ground-based observations in 2007 suggested two possible scenarios for the three-body system: a Saturn-mass planet orbiting a close binary star pair or a Saturn-mass and an Earth-mass planet orbiting a single star.

This time round the Hubble was able to provide uber sharp images, but that was only one part of the puzzle.

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