Pop Quiz!!: One of these things…

What’s the primary difference between this picture, courtesy Spaceflightnow.com09htv_400265

…and this one, from Phys.org?
nasapaintsapIf it’s obvious to you, congratulations, you now have a great sense of smarminess within you.  For the rest of you, there will be an answer in my next few posts.

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One response to “Pop Quiz!!: One of these things…

  1. Pingback: Pop Quiz answer | The Mad Spaceball

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