(CNN)--It was a nice morning to go for a walk.
For a couple astronauts, that meant venturing into outer space, for the final time of the space shuttle era.
The crew of the Atlantis is choreographing the spacewalk, as two American crew members of the International Space Station actually complete it.
Astronauts Michael Fossum and Ronald Garan are recovering a broken pump.
They'll also further a couple of experiments during the scheduled six-and-a-half hour spacewalk.
The Atlantis crew is expected to return to Earth July 21st.
Areas of fog tonight; warm and humid Sunday with a shower or T-storm possible.
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