Nothing in the universe, small or large, is stationary. Everything moves. In many cases, the motion is as fascinating as the object itself.

During early July, the Sun lopes through Gemini 3 percent more sluggishly than it passed through Sagittarius last winter. That’s because Earth now moves at its slowest pace of the year. We’ve been braking for six months. We’ve lost a whopping Mach 3.

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