Aryabhata, in the 5th century CE, proposed a heliocentric model of the solar system, where the Earth and other planets revolve around the Sun.

Jantar Mantar is an astronomical observatory built by Maharaja Jai Singh II in the 18th century. It consists of a collection of architectural instruments used for astronomical observations.

Brahmagupta, in the 7th century CE, developed a theory of planetary motion that was later adopted by Copernicus. This theory included the idea of elliptical orbits for the planets.

ISRO is the Indian space agency responsible for space exploration and research. It has launched numerous satellites and missions, including the Chandrayaan lunar mission and the Mangalyaan Mars mission.

Varāhamihira, in the 6th century CE, proposed the idea of a universe consisting of multiple galaxies. He suggested that each galaxy contains its own stars and planets.

Mangalyaan is the Indian satellite that was launched to study the planet Mars. It was launched in 2013 and successfully entered Mars' orbit in 2014, making India the first Asian country to reach Mars.

Aryabhata, in the 5th century CE, developed a method for calculating the circumference of the Earth. His method involved measuring the angle between the horizon and a star at two different locations on the Earth's surface.

AstroSat is the Indian space telescope that was launched to study the universe in infrared light. It was launched in 2015 and is designed to study a wide range of astronomical objects, including stars, galaxies, and quasars.

Aryabhata, in the 5th century CE, proposed the idea of a rotating Earth. He suggested that the Earth rotates on its axis once a day, causing the apparent motion of the Sun and stars.

Chandrayaan is the Indian lunar mission that was launched to study the Moon's surface and atmosphere. It was launched in 2008 and successfully entered lunar orbit in 2009. The mission provided valuable data and images of the Moon's surface.

Brahmagupta, in the 7th century CE, developed a theory of gravity that was later adopted by Newton. This theory included the idea that objects attract each other with a force proportional to their masses.

Aditya is the Indian satellite that was launched to study the Sun. It was launched in 2022 and is designed to study the Sun's atmosphere, corona, and magnetic field.

Aryabhata, in the 5th century CE, proposed the idea of a universe consisting of multiple dimensions. He suggested that the universe is made up of multiple layers, each with its own unique properties.

Shukrayaan is the Indian space mission that was launched to study the planet Venus. It is planned to be launched in 2023 and will study the planet's atmosphere, surface, and magnetic field.

Bhaskara II, in the 12th century CE, developed a theory of planetary motion that was later adopted by Kepler. This theory included the idea that planets move in elliptical orbits around the Sun.