Biggest vs smallest - how do we measure up in the grand scheme of the universe? Explore the fascinating scales of existence, from quantum particles to the observable universe’s edge. A journey into ...

If Earth had the same diameter as the head of a pushpin, how much would all of the other celestial bodies in the universe need to shrink to scale proportionally? It’s a fun, ridiculous question and ...

During its 4.5-billion-year life span, Earth’s been hit by countless asteroids. (Despite Jupiter’s noble attempts at defending it.) But while it’s easy to imagine the damage they’ve done, just how big ...

All the Latest Game Footage and Images from Universe Size Comparison VR How does an atom look like compared to a planet? How big is the Milky Way compared to other galaxies? In this simple application ...

The study is published in the latest issue of The American Journal of Physics ("All objects and some questions"). Masses, sizes, and relative densities of objects in our Universe. (© The American ...