These great hollow globes of artificial super-metals, and artificial transparent adamant, ranged in size from the earliest and smallest structures, which were no bigger than a very small asteroid, to spheres considerably larger than the Earth. (Olaf Stapledon, STAR MAKER)
Thursday, December 10, 2015
Conjunction
There's been a cosmic dance in the morning skies the last few months between Mars, Venus, Jupiter and the Moon. The three planets have been drawing closer together and further apart as the Earth traces its orbit and the Moon has cycled through the gathering each month as it traces its own orbit.
In today's Astronomy Picture of the Day we see the latest installment of this dance as Venus passes behind the waning Moon.
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