Featured Articles, Science The solar system is encountering a bit of a bumpy ride as it travels through a gas cloud in the local interstellar medium September 6, 2013 Ron Cowen The solar system is encountering a bit of a bumpy ride as it travels through a gas cloud in the local interstellar medium. Interstellar gas clouds; Credit: NASA/Goddard/Adler/University of Chicago/Wesleyan University