OTD…Sept. 20 and Endeavour retirement

Two space shuttle solid rocket boosters — reusable space hardware that launched on 81 missions — are being gifted to the California Science Center to become part of the museum’s launch pad display of Endeavour.

25 years ago this afternoon, Hubble was deployed from shuttle Discovery

America’s first space shuttle launched on this day 35 years ago as the reusable flying machine, Columbia, lifted off from Kennedy Space Center with John Young and Bob Crippen aboard.