The first flight of the Space Shuttle program in 1896 was STS-61C on January 12. Unfortunately, the next launch would end in tragedy as a malfunction resulted in the loss of the shuttle Challenger and all 7 of her crew. Unusually cold temperatures caused a rubber o-ring in one of the solid rocket boosters to fail, resulting in hot gases leaking and burning a hole in the fuel tank. NASA grounded the entire fleet to make upgrades. Because of this, there were only 15 shuttle flights from 1986 to 1990. After a 2 and a half year hiatus, the remaining shuttles were flying again. Flights resumed with STS-26 on September 29, 1988. STS-30 became the first shuttle flight to launch an interstellar probe. The Magellan Venus probe was carried into orbit aboard shuttle Atlantis.
STS-31 launched the Hubble space telescope into orbit in 1989. The final launch of 1990 was STS-35 on December 2.

STS-61C Mission Patch STS-51L Mission Patch STS-26 Mission Patch

STS-61C

Orbiter: Columbia
Launch: January 12, 1986

STS-51L

Orbiter: Challenger
Launch: January 28, 1986
Loss of Shuttle Challenger

STS-26

Orbiter: Discovery
Launch: September 29, 1988
STS-27 Mission Patch STS-29 Mission Patch STS-30 Mission Patch

STS-27

Orbiter: Atlantis
Launch: December 2, 1988

STS-29

Orbiter: Discovery
Launch: March 13, 1989

STS-30

Orbiter: Atlantis
Launch: May 4, 1989
STS-28 Mission Patch STS-34 Mission Patch STS-33 Mission Patch

STS-28

Orbiter: Columbia
Launch: August 8, 1989

STS-34

Orbiter: Atlantis
Launch: October 18, 1989

STS-33

Orbiter: Discovery
Launch: November 22, 1989
STS-32 Mission Patch STS-36 Mission Patch STS-31 Mission Patch

STS-32

Orbiter: Columbia
Launch: January 9, 1990

STS-36

Orbiter: Atlantis
Launch: February 28, 1990

STS-31

Orbiter: Discovery
Launch: April 24, 1990
STS-41 Mission Patch STS-38 Mission Patch STS-35 Mission Patch

STS-41

Orbiter: Discovery
Launch: October 6, 1990

STS-38

Orbiter: Atlantis
Launch: November 15, 1990

STS-35

Orbiter: Columbia
Launch: December 2, 1990