Well that didn't take long. The SETI folks used the Allen Telescope Array to look for radio emissions from the star KIC 8462852 -- that's the star I discussed last week that shows an unusual pattern of dimming and brightening. You can read the scientific paper here. (They've got to find a shorter name for that star. How about KIC MEE?). So what did the SETI investigators hear over the radio?
They heard nothing. Total radio silence. Now to be fair, KIC MEE is 1500 light years away, which is very, very far, so the power required for us to actually detect any radio signals would be in the range from a few billion megawatts to a hundred trillion megawatts. In comparison, our most powerful radio transmitter on Earth produces only ten million megawatts of power. But what's a few trillion megawatts to an alien civilization capable of planetary engineering? So the bottom line is, "Nothing to see here -- just move along." Time to cancel the alien invasion movie.