SOLAR SYSTEM

Detailed explanation-1: -Launched on July 10, 1962, Telstar 1, developed by the American Telephone and Telegraph Company (AT&T), was the world’s first active communications satellite. AT&T used the satellite to test basic features of communications via space.

Detailed explanation-2: -The Aryabhata spacecraft, named after the famous Indian astronomer, was India’s first satellite; it was completely designed and fabricated in India and launched by a Soviet Kosmos-3M rocket from Kapustin Yar on April 19, 1975.