Orbit

The video tutorial explains the concept of orbits, describing how planets and moons revolve around larger celestial bodies due to gravity. It highlights the elliptical shape of orbits and the role of gravity as a force of attraction. The tutorial also discusses how time is measured based on planetary orbits, with Earth taking 365.25 days to orbit the sun, while Mercury and Neptune have significantly different orbital periods. The moon's orbit around Earth is linked to the lunar month, and Earth's tilt during its orbit causes seasonal changes. The video concludes with a thought experiment on altering a planet's orbit to change the length of a year.

What new insight or understanding did you gain from this video?