Particle physics
The Fundamental Forces
The four basic interactions of nature — gravity, electromagnetism, and the strong and weak nuclear forces. Together they govern everything from the fusion that powers stars to the collapse of a massive core, and unifying them, especially gravity with the quantum forces, remains a central goal of physics.
Highlights
- ›Gravity, electromagnetism, and the strong and weak forces
Related physics & astronomy
Across fundamental physics
Knowledge connections
- Associated withElementary Particles
- Associated withThe Standard Model (overview)
- Associated withQuantum Gravity
- Associated withGeneral Relativity
- Associated withThe Higgs Boson
- Associated withThe Higgs Boson
- Associated withMatter–Antimatter Asymmetry
- Associated withThe Equivalence Principle
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.