Giant Alien Craft Near Shuttle Atlantis In NASA Photo From Sept 2000

Date of discovery: January 2014 NASA mission: Shuttle Atlantis STS-106 Date of mission: Sep 8, 2000 till Sept 19, 2000
I tried to look at the original NASA photo but I'm getting a error message which means its not allowing me to view it outside of the USA, but perhaps this is just a glitch.  Streetcap1 of Youtube found this great looking ship in the distance behind the Shuttle Atlantis. It looks to have three arms...each equally spaced apart. Perhaps the aliens wanted to take a look at the shuttle or perhaps they wanted to let NASA know that their ships are massive and they wanted communication.