As usual, geekgirl is a little groggy on the uptake, so I’m posting this after all the cool kids already had their fun with it (ie, The Bad Astronomer, Richard Wiseman, Blog of Phyz and Buzzhunt). The trick? There is no blue in this pattern. It’s green. The same color as you see next to the orange spirals. The Bad Astronomer has a nice explanation.
Originally posted on my sciencegeekgirl blog.
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