Like JWST, Herschel 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 telescopes include the Advanced Technology Large-Aperture Space Telescope., a conceptualized 8- to 16-meter (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 wavelengths, with substantially better resolution than Hubble or the Spitzer Space telescope.. 
Ohun rẹ yipada ni igba diẹ lẹhinna, ṣugbọn o tẹsiwaju bi akọrin.. 