A cosmologist has proposed a radical theory, which claims that the Universe may not be expanding.
In a new study, a researchers has tried to find out more about dark matter and dark energy because very little is known about them.
Researchers have found a possible way to map the spread and structure of the universe, guided by the light of quasars.
Day in Pics: 20th December
Showbiz World - December 20, 2014
People Magazine Awards 2014