How did they figure out where the black holes are? with just 2 "ears" I'd expect to be only able to determine a circle, but here is the picture they released:

How did they figure out where the black holes are? with just 2 "ears" I'd expect to be only able to determine a circle, but here is the picture they released: http://www.dailygalaxy.com/.a/6a00d8341bf7f753ef01b8d19e59ad970c-800wi http://www.dailygalaxy.com/.a/6a00d8341bf7f753ef01b8d19e59ad... Do i see a warped circle, or the bottom part of one? In the latter case I wonder how they found out. Are the L-shape sensors capable of seeing some direction depending on which way the phases shift first/last? If you'd build one of the sensors in reverse you'd see a reversed signal, no (and in between other amplitudes)? Given that they will have optimized the orientations of both stations this is probably how it worked and I'm seeing just part of a circle, right? That one lonely blob might be an unlikely mirrored version?