3 ms·
The notion that Phobos might be hollow is not exactly new. See http://en.wikipedia.org/wiki/Phobos_%28moon%29#.22Hollow_Phobos.22_suggestions http://en.wikiped
by curtis 16y ago
The notion that Phobos might be hollow is not exactly new. See http://en.wikipedia.org/wiki/Phobos_%28moon%29#.22Hollow_Phobos.22_suggestions http://en.wikipedia.org/wiki/Phobos_%28moon%29#.22Hollow_Pho....