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Science & SpaceClaim 22 / 23All claims

It's summer when the Earth is closest to the Sun.

Make your call, then switch on the lamp.

The story unlocks once you make your call.

A myth. We're closest in January. Seasons come from the tilt.

Where it came from

Closer to a fire is warmer, so it feels obvious that summer must be when we are nearest the Sun.

What’s actually true

The Earth is closest to the Sun, at about 147 million km, in early January, and farthest, at about 152 million km, in early July. That is winter in the north.

Seasons come from the Earth’s axis being tilted by about 23.4°. For half the year one hemisphere leans towards the Sun, getting higher, more direct sunlight and longer days. That is why Australia has summer when Europe has winter.

Further reading

  • NASA Space Place, “What causes the seasons?”