Visualizing the solar system in its totality requires one to conjure a lot of spinning bodies moving in synchrony. But getting a sense of those objects’ scale is just as important for developing a ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. The size of the solar system is defined by the volume ...

The universe is filled with enormous planets that make the Earth seem like nothing more than a speck of sand on a mountain. We don’t even need to leave our solar system in order to find the behemoths ...

If Earth were as small as a marble, the solar system out to Neptune would cover an area the size of San Francisco — and that's just in two dimensions. That point is driven home by a new video called ...