kdawson from the tinfoil-umbrellas-might-help dept.
sciencehabit sends us to Sciencemag.org for an account of a survey of nearby galaxies that points to the possibility that once-quiescent galactic nuclei could wake up and become active again. If the Milky Way's dormant black hole should become active, it could be bad news for life on Earth (and elsewhere in the neighborhood). The paper (PDF) is up on the arXiv.
If I were a grave-digger or even a hangman, there are some people I could
work for with a great deal of enjoyment.
-- Douglas Jerrold