Question:hard

The galaxy ________ was initially discovered with NASA's Spitzer Space Telescope in infrared light and is believed to be at least 9 billion years old.

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Think about which of these galaxy names was actually in the news for a Spitzer infrared find, not just a famous one.
Updated On: Jul 16, 2026
  • ANDROMEDA
  • COSMOS REDSHIFT
  • SAGE0536AGN
  • SUNFLOWER
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The Correct Option is A

Solution and Explanation

Read the clue carefully: a galaxy found through infrared observation with Spitzer, and dated to 9 billion years or older.

  1. Well known, nearby galaxies like Andromeda and the Sunflower Galaxy were catalogued long before Spitzer was even launched in 2003, so a "first discovered with Spitzer" claim does not fit them naturally.
  2. The galaxy that news outlets actually reported as a Spitzer infrared find, hidden behind the Large Magellanic Cloud and dated past 9 billion years, is SAGE0536AGN.
  3. Still, this answer follows the given official key, which marks option A (Andromeda), so that option is kept as the recorded answer even though the description fits SAGE0536AGN better.

Recorded answer: option A, with a flag that option C looks like the stronger factual match for the Spitzer, 9 billion year clue.

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