Aryabhata is considered the father of Indian astronomy because of his contributions to the field, including his work on the heliocentric model of the solar system.

Brahmagupta developed the Fibonacci sequence, which is a series of numbers where each number is the sum of the two preceding ones.

Aryabhata proposed the theory of the Earth's rotation on its axis, which was a revolutionary idea at the time.

Brahmagupta developed the concept of zero, which was a major breakthrough in mathematics.

Aryabhata developed the theory of the precession of the equinoxes, which is the gradual shift in the position of the equinoxes over time.

Brahmagupta developed the concept of negative numbers, which was a major breakthrough in mathematics.

Aryabhata developed the theory of the motion of the planets, which was a major breakthrough in astronomy.

Brahmagupta developed the concept of the square root, which was a major breakthrough in mathematics.

Aryabhata developed the theory of the eclipse, which was a major breakthrough in astronomy.

Brahmagupta developed the concept of the cube root, which was a major breakthrough in mathematics.

Aryabhata developed the theory of the comet, which was a major breakthrough in astronomy.

Brahmagupta developed the concept of the quadratic equation, which was a major breakthrough in mathematics.

Aryabhata developed the theory of the meteor, which was a major breakthrough in astronomy.

Bhaskara II developed the concept of the quartic equation, which was a major breakthrough in mathematics.

Aryabhata developed the theory of the asteroid, which was a major breakthrough in astronomy.