Guptas' scientists discovered that there were seven planets in the solar system.
They also created the technology that was able to help them detect eclipses of the sun and moon.
Arybhata was one of the most famous scientists in the Gupta Empire:
He determined that Earth rotates on an axis and revolves around the sun.
He determined that Earth was a sphere and calculated it's circumference.
Scientists in the empire began to use herbs to treat wounds and injuries.