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MMLU-Pro / 9045 / We were first able to accurately measure the diameter of Pluto from:

Problem

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question

We were first able to accurately measure the diameter of Pluto from:

category

physics

options

  1. Lunar-based observations made during NASA's Apollo missions
  2. The Voyager 2 spacecraft flyby in the 1980s
  3. Observations made by the Chandra X-ray Observatory
  4. brightness measurements made during mutual eclipses of Pluto and Charon
  5. The Mars Rover's telescope observations of Pluto
  6. radar observations made by the Arecibo telescope
  7. Observations made by the Spitzer Space Telescope
  8. Hubble Space Telescope images that resolved Pluto's disk
  9. a New Horizons flyby in the 1990s
  10. Images captured by the Kepler Space Telescope

src

ori_mmlu-astronomy

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