ET search: Look for the aliens looking for Earth

René Heller, Max Planck Institute for Solar System Research in Göttingen, a former postdoc with the Origins Institute and Ralph Pudritz published “The Search for Extraterrestrial Intelligence in Earth’s Solar Transit Zone” in Astrobiology. They investigated a strategy based on which external observers would be able to observe the transit of the Earth across our Sun - the preferred method that we use today to detect Earth-like planets around other stars as defined by the Kepler mission.

More information here

http://www.nature.com/news/et-search-look-for-the-aliens-looking-for-earth-1.19439

http://dailynews.mcmaster.ca/article/what-if-extraterrestrial-observers-called-but-nobody-heard/.