SUMMARY: Astronomers from the University of British Columbia have discovered that a Jupiter-sized planet is interacting with its star, causing magnetic storms. The sun-like star, HD170049, is located approximately 90 light-years away in the constellation of Sagittarius, and was found to have a planet back in 2000 by another group of astronomers. These new observations using the Canada-France-Hawaii telescope on Mauna Kea have tracked a bright spot that goes around the star keeping pace with its planet - it's been doing this for more than 100 orbits of the planet.

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