Stephen Hawking often changed his idea/hypothesis. Physics, astrophysics, and cosmology are not able to predict precisely, the ability of the human brain is limited. The human eye used for observation is also limited. Scientists can’t explain where does energy of gravity comes from. Their understanding of the universe is getting away from reality because of being misled by Einstein’s theory. They had not realized that Einstein’s theory of gravity doesn’t meet requirements of scientific method; and they had not realized that our planet can recovered by itself from the damage cause by human activity.