The photo below is of a Notch Back just before Blinking out of the NASA video, it clearly shows the Craft powering up it's electrical coil. The two small Craft on the left side are moving with the large Notch Back while leaving a wake of charged particles around it. This photo was produced by PPP using Flash/Thermo imaging from a single frame of the NASA video.
After studying the NASA video it became apparent that the Notch Back Alien Craft pulses at an idle or low power, make your own judgement by viewing the video of STS 75.
The photo below is the lower left corner and Notch of the Alien Craft as provided by PPP, this image is the real colors of the Alien Craft. The two green arrows point to smaller Alien craft suspended in docking ports, the size of the smaller craft would be about 50 feet in diameter, silver in color, disk shape.

The advanced technology seen in the photo's above leaves little doubt that Alien's evolved much earlier than humans on Earth and are capable of traversing the Universe. Current theory and observations suggest that the Universe is between 13.5 and 14.0 billion years old. The Earth is accepted by scientists to be around 4.5 billion years old, if Alien species evolved only one million years before Earth's humans this would explain the differential between us in evolutionary terms. Shostak, a SPACE.com contributor, said of those polled who believed in the possibility of extraterrestrial life, 77 percent thought alien lifeforms could develop on planets very different from Earth. About eight of 10 Americans believe it is likely that intelligent aliens on other planets are more advanced than humans, the poll found. If you find yourself believing in Alien's your not alone.