The Amazing Hubble Space Telescope in Action
According to astronomer Lyman Spitzer’s 1946 paper “Astronomical advantages of an extraterrestrial observatory”, there were two main advantages that a space-based observatory would have over ground-based telescopes. The first advantage was that “the angular resolution (smallest separation at which objects can be clearly distinguished) would be limited only by diffraction, rather than by the turbulence in the atmosphere, which causes stars to twinkle and is known to astronomers as seeing.” The second advantage was that “a space-based telescope could observe infrared and ultraviolet light, which are strongly absorbed by the atmosphere.” The United Kingdom launched the first orbiting solar telescope…