From the tiniest subatomic scales to the grandest cosmic structures of all, everything that exists depends on two things: charge and mass.

When we divide matter into its fundamental, indivisible components, are those particles truly point-like, or is there a finite minimum size?

Here in our Universe, stars shine brightly, providing light and heat to planets, moons, and more. But some objects get even hotter, by far.

Our Universe isn’t just expanding, the expansion is accelerating. Instead of dark energy, could a “lumpy” Universe be at fault?

A recent measurement has simultaneously settled an ongoing scientific debate while puzzling scientists.