What the Night Sky Would Look Like If the Other Planets Were as Close as the Moon

Perhaps the hardest thing to wrap one's mind around in astronomy (or in anything, for that matter) is scale: just how big these objects are, how far away they lie, and how long ago they formed. How can anyone understand a planet that is more than 1,300 times the size of our own? Or the 93 million miles between us and the sun? And these are just measurements in our own solar system, a puny speck in the galaxy, to say nothing of the entire universe. Our intuitive sense of sizes, distances, and time are of little help when it comes to space.

Full post: What the Night Sky Would Look Like If the Other Planets Were as Close as the Moon

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