The Rigveda is the oldest of the four Vedas, and it contains the earliest known description of the zodiac. The zodiac is a belt of 12 constellations that the sun, moon, and planets appear to pass through during the year.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He developed the first accurate model of the solar system, which placed the sun at the center and the planets orbiting around it. He also calculated the length of the year and the circumference of the earth.

The Jantar Mantar is an ancient Indian astronomical observatory that was built in the 18th century CE. It is located in Jaipur, Rajasthan, and it is still in use today. The observatory consists of a series of instruments that were used to measure the positions of the sun, moon, and planets.

Brahmagupta was an Indian astronomer and mathematician who lived in the 7th century CE. He developed the first accurate calendar, which was based on the sidereal year (the time it takes for the earth to orbit the sun relative to the stars). He also developed a number of other important astronomical theories, including the theory of planetary motion.

The Panchamahabhuta is the ancient Indian belief that the universe is made up of five elements: earth, water, fire, air, and ether. These elements are believed to be the building blocks of all matter and energy in the universe.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He developed the first accurate theory of planetary motion, which was based on the idea that the planets orbit the sun in elliptical paths. He also developed a number of other important astronomical theories, including the theory of the precession of the equinoxes.

Samsara is the ancient Indian belief that the universe is cyclical, and that all living beings are reincarnated after death. The goal of life is to achieve moksha, or liberation from the cycle of samsara.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He developed the first accurate theory of the precession of the equinoxes, which is the gradual shift in the position of the equinoxes over time. He also developed a number of other important astronomical theories, including the theory of the motion of the moon.

Rta is the ancient Indian belief that the universe is governed by a set of universal laws. These laws are believed to be eternal and unchanging, and they govern everything from the motion of the planets to the behavior of human beings.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He developed the first accurate theory of the motion of the moon, which was based on the idea that the moon orbits the earth in an elliptical path. He also developed a number of other important astronomical theories, including the theory of the motion of the planets.

The gunas are the three qualities that make up the universe: sattva, rajas, and tamas. Sattva is the quality of goodness, rajas is the quality of passion, and tamas is the quality of darkness. These qualities are believed to be present in all things, and they determine the nature of our experience.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He developed the first accurate theory of the motion of the planets, which was based on the idea that the planets orbit the sun in elliptical paths. He also developed a number of other important astronomical theories, including the theory of the motion of the moon.

The doshas are the three humors that make up the body: vata, pitta, and kapha. Vata is the humor of air and space, pitta is the humor of fire and water, and kapha is the humor of earth and water. These humors are believed to be present in all people, and they determine our physical and mental health.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He developed the first accurate theory of the motion of the sun, which was based on the idea that the sun is stationary and the earth orbits around it. He also developed a number of other important astronomical theories, including the theory of the motion of the planets.

The tattvas are the five elements that make up the universe: prithvi (earth), ap (water), tejas (fire), vayu (air), and akash (ether). These elements are believed to be the building blocks of all matter and energy in the universe.