Astronomers in the US say they have found a new planet in orbit around a star 41 light years from Earth.The discovery brings to five the number of planets orbiting the star, 55 Cancri, the most found to date in a single solar system outside our own.
Astronomers have found more than 250 planets outside our own solar system - the team behind the latest discovery have found more than anyone else.
The new planet is a gas planet about 45 times the mass of the Earth.
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