In the bigger picture, “down” could be defined as being below the plane of the solar system, which is known as the ecliptic.

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Earth’s Rotation Day 2026, observed on January 8, highlights how Earth’s constant rotation shapes day and night, climate, ...

While Earth spins in the same direction as the sun, that's not the case for every planet in the solar system. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...