India aims to send astronauts to space by December 2021, the chief of ISRO said today. The ambitious Gaganyaan project by the space agency will help India become the fourth nation to independently send humans to space. India's second moon mission, Chandrayaan-2, is planned for the middle of April this year, K Sivan said. The announcement of the Gaganyaan project was first made last year by Prime Minister Narendra Modi on Independence Day when he said "a son or daughter of India will go to space" by 2022.