Space Shuttle landing at Edwards, the orbiter was flown back to the KSC on the Shuttle Carrier Aircraft, a specially modified Boeing 747. The first orbiter, "Enterprise", was built in 1976, used in Approach and Landing Tests and had no orbital capability. Four fully operational orbiters were initially built: "Columbia", "Challenger", "Discovery", and "Atlantis". Of these, two were lost in mission accidents: "Challenger" in 1986 and "Columbia" in 2003, with a total of fourteen astronauts killed. A fifth operational (and sixth in total) orbiter, "Endeavour", was built in 1991 to replace "Challenger". The Space Shuttle was retired from service upon the conclusion
430 Space Shuttle 430 Space Shuttle 430 Space Shuttle () is a children's show shown on TVB Jade in Hong Kong that aired from 1 February, 1982 until its final episode on 8 August, 1989. The name represents the show's starting time - 4:30pm. This program aimed to educate children about astronomy or related topics with stories, songs, games and other adventures. It provided an opportunity for children to learn about different topics while being entertained at the same time. The host of the programme was Cheung Kwok Keung aka "KK", with various supporting actress, as well as the "silver" monster Coco and