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SESK: Stuff Everyone Should Know · sesk.info/aero-hubble-above-atmosphere

Why can Hubble make especially clear space images?

It observes above Earth's atmosphere, which can blur light.

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  1. It uses Moonlight only
  2. It flies inside clouds
  3. It avoids atmospheric distortion ✔

Why: Moving air in Earth's atmosphere bends and blurs incoming starlight. Hubble orbits above that distortion, so it can capture unusually clear and detailed observations.

Huh, didn't know that: Hubble observes wavelengths from ultraviolet through visible light to near infrared.

The dad joke
Hubble moved above the blur to get the big picture.
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References

Answer: It avoids atmospheric distortion. Moving air in Earth's atmosphere bends and blurs incoming starlight. Hubble orbits above that distortion, so it can capture unusually clear and detailed observations.

  1. NASA Science, Hubble Observatory science.nasa.gov/mission/hubble/observatory
    From its vantage point above Earth’s light-distorting atmosphere, Hubble offers us clear, detailed views
    Checked 2026-10-10.

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