News Space Milky Way’s black hole may blow bubbles Astronomers discover gamma ray-emitting blobs above and below the galaxy’s center Share this:FacebookTwitterPocketRedditPrintEmail By Ron Cowen November 9, 2010 at 6:02 pm This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe