A solar system just 39 light years from Earth has three planets where life may have evolved, scientists believe.
Astronomers have detected no less than seven Earth-sized worlds orbiting a cool dwarf star known as TRAPPIST-1.
The six inner planets lie in a temperate zone where surface temperatures range from zero to 100C.
Of these, at least three are thought to be capable of having oceans, increasing the likelihood of life.
British astronomer Dr Chris Copperwheat, from Liverpool John Moores University, who co-led the international team, said: ‘The discovery of multiple rocky planets with surface temperatures which allow for liquid water make this amazing system an exciting future target in the search for life.’
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