Throughout the universe, there are several underlying principles that we consider to be constants; for example, the speed of light in a vacuum. So many different aspects of our understanding of the ...

Planck's constant reveals the quantum world's fundamental energy levels. It shows how light and matter exist in discrete units (quanta). This constant defines limits to our knowledge of particle ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. The Universe is an enormous place, filled with stars and galaxies for ...