The International Space Station (ISS) is a low-orbit research laboratory, housing astronauts from many nations since November 2000. The ISS is home to research projects such as the search for dark matter and the effects of microgravity on living organisms.
The ISS is approximately 356 feet (109 m) wide (longer than a football field) and orbits the Earth over 15 times per day.
Is the fourth operational and the second-to-last Space Shuttle built. Atlantis lifted off on its maiden voyage on October 3rd 1985 and became the first Space Shuttle to launch an interplanetary probe to Venus in 1989.
The Space Shuttle Endeavour is one of the retired orbiters of the Space Shuttle program of NASA, the space agency of the United States. Endeavour was the fifth and final spaceworthy NASA space shuttle to be built, and first flew in May 1992 on mission STS-49 and its last mission STS-134 was in May 2011.
Its maiden voyage was on August 30, 1984. Since then it has flown more than any other Spacecraft having completed 39 successful missions one of which was the launching of the Hubble Space Telescope. Discovery now resides at the Smithsonian Museum in Washington, DC.
Was the fourth shuttle built and the last one to fly. It was launched on its maiden voyage October 3rd 1985 and landed for the last time on July 12th 2011 at Cape Kennedy. By the end of its last flight, Atlantis had orbited the Earth 4,848 times, traveling nearly 126 million miles.