March 2020

The four seasons on Earth | Why the Earth has seasons?

Many people believe that summer occurs when the Earth is closer to the Sun. This is not true. In fact, when the Northern Hemisphere experiences summer, the Southern Hemisphere experiences winter, and vice versa. So what causes the four seasons? Let’s learn. The seasons on Earth (or any other planet) occur due to its axial […]

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Perihelion and Aphelion of solar system planets

Perihelion and Aphelion are the nearest and farthest points respectively of an object’s orbit around the Sun. The following table shows the distances of Perihelion and Aphelion of solar system planets. Approximate average distance of Perihelion (×106 km) Approximate average distance of Aphelion (×106 km) Mercury 46 69.82 Venus 107.48 108.94 Earth 147.1 152.1 Mars 206.65 249.26

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