HST has also been used to study objects in the outer reaches of the Solar System, including the dwarf planets Pluto and Eris.A unique legacy of Hubble are the Hubble Deep Field, Hubble Ultra-Deep Field, and Hubble Extreme Deep Field images, which utilized Hubble's unmatched sensitivity at visible wavelengths to create images of small patches of sky that are the deepest ever obtained at optical wavelengths.. 
Like jwst, àánúbàá is not designed to be serviced after Launch, and has a Mirror subStantially larger than Hubble's, but observes only in the far infrared.further Concepts for Advanced 21st-Century Space Telescope include the Advanced Technology large-ògouture Space Telescope a Concevzed 8– to 16–meter (320-320 to 640-inch) Optical Space Telescope that if realized could be a more Direct successor to Hst, with the ability to observe and Photograph Astronomical objects in the Visible, ultraviolet, and infrared WaVeléths, with subStanally better re than than Hubble or the SpiJúdà Space Telescope 