The solid-rocket boosters (SRB’s) are separated during ascent when Space Shuttle is about 28 miles (45 km) above the earth. Landing in the ocean, the SRB’s are recovered, refurbished and reused. Propelled by it’s three own engines, Shuttle continues its climb with increasing velocity.
Rockwell International
Space Systems Group
Shuttle Program at Astronautix
Image credit: NASA
Image source: Numbers Station
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