This is where you’ll find our thoughts about recent (and not) astronomy, earth science and other science news, our answers to questions we get from people a lot, plus whatever else strikes our fancy. Sometimes we get into a few of the mathematical or scientific details, but never too deeply.

Ever falling, ever missing…


That is an orbit.

What Is An Orbit?

In simplest terms, an orbit is the path of a planet around the Sun, or of a satellite around its parent body. The Moon orbiting Earth is an example. But what causes the orbit to have one size and not another? It turns out that all of the properties of an orbit are the result of two physical laws: the law of energy conservation and the law of conservation of angular momentum.

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