APRIL 6, 2009
International Space Station Expands Again
EXPLANATION
The developing International Space Station (ISS) has changed its appearance again. In a recently completed mission, the Space Shuttle orbiter Discovery visited the ISS and added components that included a new truss and new solar panels. The entire array of expansive solar panels is visible in the above picture taken by the Discovery Crew after leaving the ISS to return to Earth. The world’s foremost space outpost can be seen developing over the past several years by comparing the above image to past images. Also visible above are many different types of modules, a robotic arm, and a supply ship. Construction began on the ISS in 1998.
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