John Glenn On the Launch Pad

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John Glenn's Launch Vehicle -- Then and Now

The orbital flights of Project Mercury used a re-purposed ICBM, the Atlas missile, as the launch vehicle. Today's Space Shuttle uses a specially designed pair of solid fuel booster rockets combined with the shuttle's own three liquid fuel engines to reach orbit.

John Glenn's Mercury-Atlas 6 in 1962 John Glenn's Space Shuttle in 1998

return to John Glenn -- Then and Now