Question: To black holes emit Hawking radiation?
About the article "Black hole", section "Information loss paradox".

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Zel'dovich played a key role in developing the theory of black hole evaporation due to Hawking radiation, where in his visit to Moscow in 1973, Soviet scientists Zel'dovich and Alexander Starobinsky showed Hawking that, according to the quantum mechanical uncertainty principle, rotating black holes should create and emit particles. 
By their very nature, black holes do not directly emit any signals other than the hypothetical Hawking radiation; since the Hawking radiation for an astrophysical black hole is predicted to be very weak, this makes it impossible to directly detect astrophysical black holes from the Earth.
A possible exception to the Hawking radiation being weak is the last stage of the evaporation of light (primordial) black holes; searches for such flashes in the past have proven unsuccessful and provide stringent limits on the possibility of existence of light primordial black holes.
NASA's Fermi Gamma-ray Space Telescope launched in 2008 will continue the search for these flashes.
Astrophysicists searching for black holes thus have to rely on indirect observations.
A black hole's existence can sometimes be inferred by observing its gravitational interactions with its surroundings.
A project run by MIT's Haystack Observatory is attempting to observe the event horizon of a black hole directly.
Initial results are encouraging. 
The four laws of black hole mechanics suggest that one should identify the surface gravity of a black hole with temperature and the area of the event horizon with entropy, at least up to some multiplicative constants.
If one only considers black holes classically, then they have zero temperature and, by the no hair theorem, zero entropy, and the laws of black hole mechanics remain an analogy.
However, when quantum mechanical effects are taken into account, one finds that black holes emit thermal radiation (Hawking radiation) at temperature formula_21 From the first law of black hole mechanics, this determines the multiplicative constant of the Bekenstein-Hawking entropy which is formula_22  
Hawking may refer to:  Stephen Hawking, English theoretical physicist and cosmologist Hawking (surname), an English surname "Hawking" (2004 film), a 2004 television film about Stephen Hawking "Hawking" (2013 film), a 2013 biographical documentary film about Stephen Hawking Hawking (falconry), the sport of hunting with hawks Hawking (birds), a feeding strategy in birds involving catching flying insects in the air Hawking radiation, thought to be emitted from black holes by quantum effects 7672 Hawking, a minor planet Street hawking, vending merchandise on the street Hawking, a shuttlecraft aboard the USS Enterprise (NCC-1701-D) seen in the fourth season episode, "The Host"  
Hawking radiation is black body radiation that is predicted to be released by black holes, due to quantum effects near the event horizon.
It is named after the physicist Stephen Hawking, who provided a theoretical argument for its existence in 1974, and sometimes also after Jacob Bekenstein, who predicted that black holes should have a finite, non-zero temperature and entropy.
Hawking's work followed his visit to Moscow in 1973 where the Soviet scientists Yakov Zeldovich and Alexei Starobinsky showed him that according to the quantum mechanical uncertainty principle, rotating black holes should create and emit particles.
Hawking radiation reduces the mass and the energy of the black hole and is therefore also known as "black hole evaporation".
Because of this, black holes that lose more mass than they gain through other means are expected to shrink and ultimately vanish.
Micro black holes (MBHs) are predicted to be larger net emitters of radiation than larger black holes and should shrink and dissipate faster.
In September 2010, a signal that is closely related to black hole Hawking radiation (see analog gravity) was claimed to have been observed in a laboratory experiment involving optical light pulses.
However, the results remain unverified and debatable.
Other projects have been launched to look for this radiation within the framework of analog gravity.
In June 2008, NASA launched the Fermi space telescope, which will search for the terminal gamma-ray flashes expected from evaporating primordial black holes.
In the event that speculative large extra dimension theories are correct, CERN's Large Hadron Collider may be able to create micro black holes and observe their evaporation.