Hubble Space Telescope longer wavelengths than Hubble or JWST, was the European Space Agency's Herschel Space Observatory, launched on May 14, 2009. Like JWST, Herschel was not designed to be serviced after launch, and had a mirror substantially larger than Hubble's, but observed only in the far infrared and submillimeter. It needed helium coolant, of which it ran out on April 29, 2013. Further concepts for advanced 21st-century space telescopes include the Advanced Technology Large-Aperture Space Telescope, a conceptualized optical space telescope that if realized could be a more direct successor to HST, with the ability to observe and photograph astronomical objects in
Hopkins Ultraviolet Telescope on Astro-2 (in 1995). HUT is on display at the Smithsonian National Air and Space Museum in Washington, D.C. in the United States. Hopkins Ultraviolet Telescope The Hopkins Ultraviolet Telescope (HUT) was a space telescope designed to make spectroscopic observations in the far-ultraviolet region of the electromagnetic spectrum. It was flown into orbit on the Space Shuttle and operated from the Shuttle's payload bay on two occasions: in December 1990, as part of Shuttle mission STS-35, and in March 1995, as part of mission STS-67. HUT was designed and built by a team based at Johns Hopkins University, led by