The fundamental laws of the universe — quantum mechanics, relativity, and everything in between.
6 knowledge pages explored
Einstein's theory of relativity reshaped our understanding of space, time, gravity, and the universe, revealing them as interconnected and relative, not absolute.
Overwhelming scientific evidence, honed by millennia of observation and modern technology, definitively proves Earth is a sphere, not flat.
The Cosmic Microwave Background is the oldest light in the universe, a direct echo of the Big Bang and a blueprint for cosmic structure.
An invisible, mysterious substance, dark matter, makes up over a quarter of the universe, shaping galaxies through its unseen gravitational pull.
An invisible cosmic substance, dark matter silently shapes galaxies and accounts for 27% of the universe's mass, revealing its presence only through gravity.
Can we really travel through time? Discover what physics says about past and future journeys—and why paradoxes make the idea so troubling.