NASA photo ID STS088-724-66 taken during Space Shuttle mission STS-88, described as showing an item of "space debris", an object claimed by conspiracy theorists to be an alien satellite, the Black Knight.
NASA
Taken on 11 December 1998, 20:17:04 GMT
NASA Photo ID: <a rel="nofollow" class="external text" href="http://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=STS088&amp;roll=724&amp;frame=66#myModal3">STS088-724-66</a>