SUBCATEGORY02 PUBLISHED GUIDES
Cosmos
Laws and principles filed under Nature & Cosmos / Cosmos.
PUBLISHED GUIDES
Cosmos
Every guide includes meaning, mechanism, applications, limitations, related concepts, and traceable references.
Cosmos005
Empirical cosmological relation
Hubble-Lemaitre Law
On sufficiently large scales, the farther away a galaxy is, the faster cosmic expansion carries it away from us.
Cosmos025
Planetary motion framework
Kepler's Laws
Planets follow ellipses, sweep equal areas in equal times, and obey a precise relation between orbital size and orbital period.