Why the Hubble Space Telescope life cycle program cost over

摘要

The Hubble Space Telescope is by far the most successful scientific spacecraft ever launched. According to the ScienceNews metric, Hubble has produced 25% of NASA's scientific return since its launch in 1990, or roughly 1.5% of world-wide discovery in all fields of science, from archeology to biomedicine to zoology. Yet despite this outstanding success,Hubble has also been expensive, totaling