Subrahmanyan Chandrasekhar was an Indian-American astrophysicist who made significant contributions to the study of stars. He is best known for his work on the structure and evolution of stars, including the Chandrasekhar limit, which determines the maximum mass of a white dwarf star.

The Himalayan Chandra Telescope is the largest optical telescope in India. It is located at an altitude of 4,500 meters in the Himalayas and has a primary mirror diameter of 2 meters.

Govind Swarup was an Indian radio astronomer who discovered the first extrasolar planet in 1994. The planet, named PSR B1257+12 b, orbits a pulsar known as PSR B1257+12.

AstroSat is an Indian space observatory that was launched in 2015. It is designed to study a wide range of astronomical objects, including stars, galaxies, and quasars.

Vikram Sarabhai was an Indian physicist and astronomer who made significant contributions to the study of the cosmic microwave background radiation. He was the founder of the Indian Space Research Organisation (ISRO) and the Physical Research Laboratory (PRL).

The Giant Metrewave Radio Telescope (GMRT) is a radio telescope that is located in the Himalayas. It is one of the largest radio telescopes in the world and is used to study a wide range of astronomical objects, including galaxies, quasars, and pulsars.

T. Padmanabhan is an Indian physicist and cosmologist who is known for his work on the formation and evolution of galaxies. He is the author of several books on cosmology and has made significant contributions to the field.

Mangalyaan is an Indian space probe that was launched to Mars in 2013. It is the first Indian mission to Mars and was successfully inserted into Mars orbit in September 2014.

Jayant Narlikar is an Indian astrophysicist and cosmologist who is known for his work on the origin and evolution of the universe. He is the author of several books on cosmology and has made significant contributions to the field.

Chandrayaan-2 is an Indian space observatory that was launched in 2018. It is the second Indian mission to the Moon and is designed to study the lunar surface and atmosphere.

Raja Ramanna was an Indian physicist and astronomer who made significant contributions to the study of the structure and dynamics of galaxies. He was the founder of the Raman Research Institute (RRI) and the National Centre for Radio Astrophysics (NCRA).

Shukrayaan-1 is an Indian space probe that was launched to Venus in 2018. It is the first Indian mission to Venus and is designed to study the planet's atmosphere and surface.

Arvind Bhatnagar was an Indian astrophysicist who made significant contributions to the study of the formation and evolution of stars. He was the founder of the Indian Institute of Astrophysics (IIA) and the National Centre for Radio Astrophysics (NCRA).

Aditya-L1 is an Indian space observatory that is scheduled to be launched in 2023. It is designed to study the Sun and its impact on Earth's climate.

Homi J. Bhabha was an Indian nuclear physicist and cosmologist who made significant contributions to the study of the origin and evolution of the universe. He was the founder of the Tata Institute of Fundamental Research (TIFR) and the Bhabha Atomic Research Centre (BARC).