The Rigveda is the oldest of the four Vedas, and it contains hymns and prayers that are believed to have been composed by ancient Indian sages. It also contains information about the positions of stars, planets, and other celestial objects.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He is credited with developing the theory of elliptical orbits for planets, which was later adopted by Johannes Kepler in the 17th century.

The armillary sphere is an astronomical instrument that was used to measure the positions of stars and planets. It consists of a series of concentric rings that represent the different celestial spheres.

Brahmagupta was an Indian astronomer and mathematician who lived in the 7th century CE. He is credited with developing the concept of zero, which was later adopted by the Arabs and eventually by the Europeans.

The sky is the answer to the Indian astronomical riddle that asks, "What is that which has no beginning, no end, and no middle, but is always present?" The sky is infinite and eternal, and it is always present, even though we cannot see it at night.

Varahamihira was an Indian astronomer and mathematician who lived in the 6th century CE. He is credited with developing the theory of the precession of the equinoxes, which is the slow and gradual shift of the position of the equinoxes over time.

The wind is the answer to the Indian astronomical riddle that asks, "What is that which is always there, but you can never see it?" The wind is invisible, but we can feel it and see its effects.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He is credited with developing the theory of the heliocentric solar system, which places the Sun at the center of the solar system.

The moon is the answer to the Indian astronomical riddle that asks, "What is that which is always changing, but always remains the same?" The moon changes its appearance throughout the month, but it always remains the same object.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He is credited with developing the theory of the motion of the Earth around the Sun, which was later adopted by Nicolaus Copernicus in the 16th century.

The stars are the answer to the Indian astronomical riddle that asks, "What is that which is always there, but you can only see it at night?" The stars are always there, but we can only see them at night when the sky is dark.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He is credited with developing the theory of the spherical Earth, which was later adopted by the Greeks and the Romans.

The wind is the answer to the Indian astronomical riddle that asks, "What is that which is always there, but you can never touch it?" The wind is invisible and intangible, so we can never touch it.

Aryabhata was an Indian astronomer and mathematician who lived in the 5th century CE. He is credited with developing the theory of the rotation of the Earth on its axis, which was later adopted by the Greeks and the Romans.

The sun is the answer to the Indian astronomical riddle that asks, "What is that which is always there, but you can only see it in the daytime?" The sun is always there, but we can only see it in the daytime when it is shining.