The first Indian satellite, Aryabhata, was launched on 19 April ______.

1975

The correct answer is Option (4) - 1975

The Aryabhata satellite was India's first indigenously built satellite, named after the ancient Indian mathematician and astronomer Aryabhata. Launched on April 19, 1975, Aryabhata marked a significant milestone in India's space program, making India the sixth nation in the world to have a satellite in orbit. The Aryabhata satellite was designed to conduct scientific experiments in X-ray astronomy and solar physics. It weighed around 360 kilograms and was primarily used for conducting scientific research and gathering data about space and celestial bodies.

The launch of Aryabhata represented India's entry into the field of space exploration and technology. It laid the foundation for the development of India's indigenous space capabilities and paved the way for subsequent satellite launches and space missions by the Indian Space Research Organisation (ISRO). Aryabhata's successful launch demonstrated India's technological capabilities and its commitment to harnessing space technology for peaceful purposes. It also served as a source of national pride and inspiration, motivating further advancements in India's space program.

Overall, the launch of Aryabhata marked a significant milestone in India's journey into space and played a crucial role in shaping the country's space exploration endeavors in the years to come.