The Sky This Week, 2011 July 19 – 26 — Naval Oceanography Portal

It is hard to believe that July 20th marks the 42nd anniversary of humankind’s first tentative footsteps onto the surface of another world, but it was indeed on this day in 1969 that Neil Armstrong took that "giant leap for mankind". What is even harder to believe is that on the 21st we will retire the last active American passenger-carrying spacecraft as the shuttle Atlantis touches down in Florida for the final time.

The Sky This Week, 2011 July 19 – 26 — Naval Oceanography Portal