Space telescope Hubble Space Telescope, which was launched on April 24, 1990 by the Space Shuttle "Discovery" (STS-31). Performing astronomy from ground-based observatories on Earth is limited by the filtering and distortion of electromagnetic radiation (scintillation or twinkling) due to the atmosphere. Some terrestrial telescopes can reduce atmospheric effects with adaptive optics. A telescope orbiting Earth outside the atmosphere is subject neither to twinkling nor to light pollution from artificial light sources on Earth. As a result, the angular resolution of space telescopes is often much smaller than a ground-based telescope with a similar aperture. Space-based astronomy is even more important for
Space Shuttle Columbia disaster to the crew. A Department of Defense school in Guam was renamed Commander William C. McCool Elementary School. The City of Palmdale, California, the birthplace of the entire shuttle fleet, changed the name of the thoroughfare Avenue M to Columbia Way. In Avondale, Arizona, the Avondale Elementary School where Michael Anderson's sister worked had sent a T-shirt with him into space. It was supposed to have an assembly when he returned from space. The school was later renamed Michael Anderson Elementary. The first dedicated meteorological satellite launched by the Indian Space Research Organisation (ISRO) on 2 September 2002, named Metsat-1,