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Curious tilt of the sun traced to undiscovered planetCalifornia Institute of Technology
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 X-rays stream off the sun in this image showing observations from by NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, overlaid on a picture taken by NASA's Solar Dynamics Observatory (SDO). Credit: NASA Read more at: https://phys.org/news/2016-10-curious-tilt-sun-undiscovered-planet.html#jCp Planet Nine |