Scientists believe that advanced civilizations may have existed in past eras.
Scientists are studying the chemical composition of dust beyond our solar system. It might get homogenized by interstellar space 'stew', they surmise.
A new deal between India and the U.S. will set up a LIGO laboratory that will help scientists to go forward in the field of gravitational waves research.
The galaxy EGS8p7 is 13.2 billion years old. Its discovery could get scientists to rethink theories explaining early universe post Big Bang.
