Kepler-9b and Kepler-9c 2,000 light years from Earth:

Kepler-9b and Kepler-9c 2,000 light years from Earth:



But given its gravitational orbit, Kepler-9b and Kepler-9c are the two most massive objects about the star and are therefore bound by its gravitational force, follows Matthew Holman, an astrophysicist at Harvard University, author of work.

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