Today I heard for the first time a description of an alien craft that looked like a 10 foot wide cube, colored gray or black, inside of a transparent spherical bubble. They mentioned it was sitting stationary in airspace with heavy air traffic and a couple of planes missed it by just 50ft. It was kind a being in the way.

First the tic tac design and now this. With the accelerating speed of technological development, they probably have a new design for space travel every 5 minutes or so.