The reason we have seasons is because, during its journey around the Sun, the Earth is tilted.
Did you ever consider that human beings might have a breeding season? Birth seasonality exists – and has interesting implications for childhood disease outbreaks.
The tilt of Earth's axis as it orbits the sun results in the seasonal changes.
Technology has redefined astronomy. Pioneering telescope designs have allowed astronomers to unravel ever more complex questions about the universe and its mysteries.
The traditional TV schedule is still more important than we might think.
SAD has entered popular mythology, but that doesn't make it real.