who discovered this?
David Jewitt
Discovery
In 1987, astronomer David Jewitt, then at MIT, became increasingly puzzled by "the apparent emptiness of the outer Solar System". He encouraged then-graduate student Jane Luu to aid him in his endeavour to locate another object beyond Pluto's orbit, because, as he told her, "If we don't, nobody will." Using telescopes at the Kitt Peak National Observatory in Arizona and the Cerro Tololo Inter-American Observatory in Chile, Jewitt and Luu conducted their search in much the same way as Clyde Tombaugh and Charles Kowal had, with a blink comparator. Initially, examination of each pair of plates took about eight hours, but the process was sped up with the arrival of electronic charge-coupled devices or CCDs, which, though their field of view was narrower, were not only more efficient at collecting light (they retained 90% of the light that hit them, rather than the 10% achieved by photographs) but allowed the blinking process to be done virtually, on a computer screen. Today, CCDs form the 
large objects ( 10 m) in space originating from a region between jupiter and mars Asteroid belt can you explain its structure? Asteroids become darker and redder with age due to space weathering. Composition is calculated from three primary sources: albedo, surface spectrum, and density. how is it classified into groups? Orbital classification; Quasi-satellites and horseshoe objects ; Spectral classification can you name a belt with similar properties? Kuiper belt
Gerard Kuiper David Jewitt David Jewitt and Jane Luu.
Kuiper belt Kuiper belt Kuiper belt
Introduction Discovery Discovery
The Kuiper belt was named after Dutch-American astronomer Gerard Kuiper, though he did not predict its existence. In 1992, minor planet (15760) Albion was In 1987, astronomer David Jewitt, then at MIT, became increasingly puzzled by "the apparent emptiness of the outer Solar System".  Finally, after five years of searching, Jewitt and Luu announced on August 30, 1992 the "Discovery of the candidate Kuiper belt object ". Six months later, they discovered a second object in the region, (181708) 1993 FW. By 2018, over 2000 Kuiper belts objects had been discovered.
wiki:7687766
Kuiper belt [SEP] Discovery
In 1987, astronomer David Jewitt, then at MIT, became increasingly puzzled by "the apparent emptiness of the outer Solar System". He encouraged then-graduate student Jane Luu to aid him in his endeavour to locate another object beyond Pluto's orbit, because, as he told her, "If we don't, nobody will." Using telescopes at the Kitt Peak National Observatory in Arizona and the Cerro Tololo Inter-American Observatory in Chile, Jewitt and Luu conducted their search in much the same way as Clyde Tombaugh and Charles Kowal had, with a blink comparator. Initially, examination of each pair of plates took about eight hours, but the process was sped up with the arrival of electronic charge-coupled devices or CCDs, which, though their field of view was narrower, were not only more efficient at collecting light (they retained 90% of the light that hit them, rather than the 10% achieved by photographs) but allowed the blinking process to be done virtually, on a computer screen.