"launched on April 24th, 1990, the purpose of the Hubble Space Telescope is so astronauts and astronomers and even the public can discover new images of our galaxy and other galaxies as well as other planets" -unknown
Spectroscope
"...to evaluate the effects on a beam of light when it is passed through certain substances..." -unknown
Apollo and Voyager
"The Apollo space was composed of three parts designed to accomplish the American Apollo program's goals of landing astronauts on the moon by the end of the 1960s and returning safely to earth..." -unknown
"The voyager program is an American scientific program that launched two unmanned space missions, the probes voyager 1 and 2. These we launched in 1977 to take advantage of a favorable alignment of the planets during the late 1970s." -unknown