10-16-2015, 11:09 PM
One suggestion I've seen is that this might be deliberate signalling using shades.
This is, of course, an idea we explored at Orion's Arm some time ago
http://www.orionsarm.com/eg-article/48fa7379af7e0
This is, of course, an idea we explored at Orion's Arm some time ago
http://www.orionsarm.com/eg-article/48fa7379af7e0