Prime Minister Narendra Modi expressed deep sadness and shock over the tragic death of Iranian President Ebrahim Raisi in a helicopter cras...

MAVEN has been tracking the hydrogen escape without interruption over the course of a Martian year, which lasts nearly two Earth years.

Washington, Oct 20 (IANS) After investigating the upper atmosphere of the Red Planet for a full Martian year, NASA's MAVEN mission has foun...