Space & Science

Is the Earth moving closer to the sun or away from it?

The sun moves so predictably across the sky that you may never suspect its relationship to Earth is changing all the time. In fact, the average distance between the Earth and the sun is not static from year to year. So do we know if Earth move closer or further from the sun? And what forces act on our planet and our star to make this happen?

In short, the Sun moves away from Earth over time. On average, the Earth is about 93 million miles (150 million kilometers) from the sun, according to NASA (opens in a new tab). However, its orbit is not perfectly circular; it is slightly elliptical or oval. This means that the distance between the Earth and the sun can vary from approximately 91.4 million to 94.5 million miles (147.1 million to 152.1 million km), Nasa (opens in a new tab) said.

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