The discovery that Earth revolves around the Sun was revolutionary. It fundamentally changed how we viewed the cosmos, as well as ourselves.

But the Earth does not revolve around the Sun. At least, not exactly . Time to get pedantic.

Every single object in the solar system, from the gargantuan sun to the tiniest speck, exerts a gravitational pull on everything else. The solar system is basically a massive game of tug of war, and all of the yanking balances out at a specific point: the center of mass, or "

However, rather than play a billion-year game of cosmic tag, more often than not, binary stars will take an elliptical orbit!

The rest of the universe certainly doesn't revolve around the Earth, but, like so many topics in science, it's an oversimplification to say that everything orbits a...

"Technically, what is going on is that the Earth, Sun and all the planets are orbiting around the center of mass of the solar system," writes Cathy Jordan, a Cornell University Ask an Astronomer contributor.

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