gravity articles

What stabilizes galaxies over time?

The enduring structure of galaxies, vast collections of stars, gas, and dust stretching across unimaginable distances, i...

How does gravity influence planetary orbits?

The motion of planets around a star is a stunning display of celestial mechanics, perfectly choreographed by a single, p...

How does matter curve spacetime?

The concept of how matter warps the very structure of reality—spacetime—is one of the most profound ideas in modern phys...