There are technically four, but only three are spaceworthy:
OV-103 aka Discovery
OV-104 aka Atlantis
OV-105 aka Endeavour
OV-101 aka Enterprise exists but is a non-flying shuttle. It was built as a demonstrator but was never built to fly in space although in theory it could have been dismantled and made spaceworthy -- a very expensive proposition.
3 space shuttles have crashed so far
No new space shuttles are being built at this time.
Currently NASA have three space shuttles Discovery, Atlantis and Endeavour.
There were six NASA Space Shuttles.
6
3 space shuttles have crashed so far
Currently NASA have three space shuttles Discovery, Atlantis and Endeavour.
No new space shuttles are being built at this time.
4 Space Shuttles existed in 2011. Including the test vehicle, Space Shuttle Enterprise. Space Shuttles that actually went into space? 3. Discovery, Atlantis, and Endeavour.
none.
There were six NASA Space Shuttles.
13
6
Many different vehicles have been sent into space. Manned capsules, as well as shuttles and even satellites and probes have left the world into space.
5 different space shuttles have been launched on 129 missions.
119
5 NASA Shuttles have been into space. Of those 5 shuttles, 2 were unfortunately destroyed. There has been a total of 135 Space missions using the space shuttle between the years 1980 and 2011 :)