"Do you believe in aliens"

Discussion in 'Miscellaneous' started by Deimos Anomaly, Feb 14, 2009.

  1. Trekker4747

    Trekker4747 Boldly going... Premium Member

    Jul 16, 2001
    Kansas City
    Radio signals travel at the speed of light.

    The galaxy is 100,000 lightyears across. Ergo, it'd take 100,000 years for our signals to reach the otherside of the galaxy. Not "millions."

    There's also some question as to whether or not our signals can make it much past the influence of our solar system before being blown back by the "wind" in the wide universe beyond our Oort cloud. Further, if our signals will even be distinguishable from the natural radio noise generated by the galaxy itself.
    Last edited: Feb 16, 2009
  2. Lookingglassman

    Lookingglassman Admiral Admiral

    Mar 22, 2006
    Trekker4747, I stand corrected.