1:-The Kuiper belt, occasionally called the Edgeworth–Kuiper belt, is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune to approximately 50 AU from the Sun. It is similar to the asteroid belt, but is far larger – 20 times as wide and 20–200 times as massive.
2:- Evaporation of black holes-
THE energy lost by the black hole as a cause of "HAWKING'S radiation " and it's rotation may lead the black hole to no existence by slowly converting it's mass into heat energy.
3:- Hawking's Radiation :- This is a radiation(electromagnetic radiation ) which according to the theory is expected to emited by a black body (a black hole ) in accordance with the quantum effects. This radiation is due to black hole capturing an anti-particle from a particle-antiparticle pair created near the black holes.