After 37 years and 134 missions, the Space Shuttle will retire, effectively marking the end of US manned space travel for the foreseeable future.
We were reminded of this when the last external fuel tank started its journey from the NASA Michoud Assembly Facility in New Orleans to NASA in Cape Canaveral.
Many workers there, some that have been there all 37 years of the program waved a tearful goodbye to the tank.


This tank will be used in the last mission of the shuttle, STS-134 using the shuttle Endeavor.
This marks NASA’s last manned flight planned.
Let that sink in.
A Brief History of US’s manned flights: From Mercury to Skylab
The National Aeronautics and Space Administration is under the Executive Branch of the US Government, and was responsible for the civilian space program and aeronautics and aerospace program, established on July 29th, 1958.
Project Mercury, conducted in the height between NASA and the Soviet Union’s space agency, was the first manned program conducted by NASA. During this program, Alan Shepard became the first American in space on Freedom 7, and John Glenn became the first American to orbit the Earth on Friendship 7.
Project Gemini focused on experiments and techniques for the lunar missions. There were ten missions in this program, which included the first spacewalks and orbital maneuvers.
The Apollo program marked a milestone in the history of space flight: the landing on the moon, with Apollo 11. This was the first time a human would step on an extra planetary object. There would be five more Apollo missions that would land on the moon, ending with Apollo 17.
Skylab, launched in 1973, was the first space station to reach orbit. It fell out of orbit in 1979.
The Space Shuttle and the International Space Station
The Space Shuttle became the main NASA focus in the late seventies and the eighties. It was the first relaunchable spacecraft ever made. The first shuttle to launch was Columbia on April 12th, 1981.
But, in 1986, the Space Shuttle Challenger exploded 73 seconds after takeoff, grounding the Shuttle for almost three years. But, on September 29th, 1988, Space Shuttle Discovery lifted off safely with a crew of five.
In 1995, Russia and America cooperated when a Shuttle docked with a Russian Craft. This cooperation would evolve into the building of the International Space Station, which the Space Shuttle was an integral part.
Another disaster took place on February 1st, 2003, when the first Space Shuttle launched, Space Shuttle Colombia, broke off just prior to its scheduled landing. The remaining three shuttles, Discovery, Atlantis, and Endeavor, were grounded, suspending the construction of the ISS, until 2005 when Discovery lifted off on July 26th. It returned safely. A memorial to Columbia was placed on Mars by the rover Spirit.
The remaining three shuttles would lift off until their retirement later this year.
There are two missions left in our space program.