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Across 3. If the pulses of a pulsar come a little _______ the pulsar is moving away from us. 9. The method by which the most exosolar planets have been found. 10. A French mission to discover exosolar planets. 13. Killed the Chimera 15. If a star has a _______________ with a cleared out ring, we can infer that it has a forming planet. 17. Exoplanets generally have orbits of ______ diameter. 18. The name of the imaged exosolar planet 19. Most useful in conjunction with the Doppler shift method. 20. Believed that "Every star is a distant sun."

Down 1. It is difficult and chancy to discover planets using ___________. 2. A planet that isn't orbiting a star 4. How many confirmed exosolar planets have been imaged? 5. How many Earth-like exosolar planets have been discovered? 6. A NASA mission that will be launched around 2015 7. Most exoplanets are similar in structure to ________ 8. The method van de Camp used to (incorrectly) discover an exosolar planet. 11. A planet around another star 12. Too big for a planet; too small for a star 14. Thought he discovered planets orbiting Barnard's Star 16. Dead star that gives off radio waves at regular intervals