{
  "id": "2026-08-29",
  "title": "Astronomy Quiz of the Day",
  "questions": [
    {
      "id": "q1",
      "prompt": "When did the Hubble Space Telescope launch?",
      "choices": [
        {
          "id": "a",
          "text": "1990"
        },
        {
          "id": "b",
          "text": "1985"
        },
        {
          "id": "c",
          "text": "2000"
        }
      ],
      "answer": "a",
      "reason": "The Hubble Space Telescope was launched on April 24, 1990.",
      "reasons": {
        "a": "The Hubble Space Telescope was launched on April 24, 1990.",
        "b": "The Hubble was not ready for launch until 1990.",
        "c": "The Hubble had already been operational for a decade by 2000."
      }
    },
    {
      "id": "q2",
      "prompt": "Which spacecraft was the first to reach interstellar space?",
      "choices": [
        {
          "id": "a",
          "text": "Voyager 1"
        },
        {
          "id": "b",
          "text": "Pioneer 10"
        },
        {
          "id": "c",
          "text": "New Horizons"
        }
      ],
      "answer": "a",
      "reason": "Voyager 1 entered interstellar space in August 2012.",
      "reasons": {
        "a": "Voyager 1 entered interstellar space in August 2012.",
        "b": "Pioneer 10 was the first spacecraft to travel through the asteroid belt and make a flyby of Jupiter, but it did not reach interstellar space.",
        "c": "New Horizons is on a trajectory to leave the solar system, but it has not yet reached interstellar space."
      }
    },
    {
      "id": "q3",
      "prompt": "Which telescope is known for discovering the expansion of the universe?",
      "choices": [
        {
          "id": "a",
          "text": "Mount Wilson Observatory"
        },
        {
          "id": "b",
          "text": "Keck Observatory"
        },
        {
          "id": "c",
          "text": "Arecibo Observatory"
        }
      ],
      "answer": "a",
      "reason": "Edwin Hubble used the Hooker Telescope at Mount Wilson to discover the expansion of the universe.",
      "reasons": {
        "a": "Edwin Hubble used the Hooker Telescope at Mount Wilson to discover the expansion of the universe.",
        "b": "The Keck Observatory was built decades after the discovery of the universe's expansion.",
        "c": "Arecibo was known for radio astronomy, not for discovering the universe's expansion."
      }
    }
  ]
}