Most of the signals Antares has picked up in the last two years came from the atmosphere. The map (left) of all the up-going neutrino candidates that Antares has caught so far shows a sky fairly evenly peppered with possible neutrinos. But the Antares researchers are waiting for clusters of points before they can declare they've found a source. "What we will see from a cosmic source plotted in this map is not one point here, one point there," Giacomelli said. "We are looking for points that concentrate in a small blob. This will be an indication that you found something."