Assertion: universe's energy | /r/HasProperty | light
Facets:
Source sentences:
text: In physics, it is symmetry conservation in the service of energy conservation which wins the battle over matter and temporal entropy - the conversion of bound energy (mass) to free energy (light) in stars, quasars, and Hawking's "quantum radiance" of black holes being primary examples.
text: We seem to live in a universe based on electromagnetic energy consisting of two interchangeable forms, "free" energy (light) and "bound" energy (matter).