Our solar system may well have a twin - because it's thought a nearby solar system has nine planets.That's just one more than ours, which has eight, following the demotion of Pluto to dwarf-planet status in 2006.
In a new report to be published in the journal Astronomy and Astrophysics, astronomer Mikko Tuomi re-analysed data taken of star HD 10180 with High Accuracy Radial Velocity Planet Searcher (HARPS), a high-precision camera mounted on a 3.6 meter telescope in Chile.
The star has been studied for years because at 130 light years away it is relatively close and therefore brighter and easier for astronomers to examine. Read More
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