In his seminal work, Conrad Waddington employed deterministic differential equations to define epigenetics as the emergence of a phenotype that can be perturbed by the environment but whose endpoints ...

Potential energy is the latent energy in an object at rest, and is one of two forms of energy. The other form, kinetic energy, is the energy expressed by an object in motion. Potential energy is a ...

A long time ago, life left microscopic signatures on Mars — or did it? That's the question NASA scientists have worked for years to answer. On Wednesday, NASA researchers said the answer might be in a ...