Recent scientific research has found that many objects in the universe can emit Hawking radiation, and Hawking radiation is more common than expected. Therefore, it is possible to understand the situation at the end of the black hole's life by studying Hawking radiation. From this passage, we know? ['Hawking radiation is widespread in the universe.', 'Objects in the universe can generally emit Hawking radiation.', 'Prior to this discovery, scientists were undecided whether Hawking radiation exists in the universe.', "This discovery allows scientists to determine the end of the black hole's life."]