Astronomical events are events such as eclipses or novae that astronomy studies, whereas "astronomy events" refers to events such as meetings,
Celestial events and highlights of 2023 including supermoons, solar and lunar eclipses, meteor showers, solstices, and equinoxes.Take Good Pictures of the MoonVenus: Our Twin PlanetMercury: The Iron Planet
Idea of multiple histories into a complete unified theory .
In theoretical physics, top-down cosmology is a proposal to regard the many possible past histories of a given event as having real existence.
This idea of multiple histories has been applied to cosmology, in a theoretical interpretation in which the universe has multiple possible cosmologies, and in which reasoning backwards from the current state of the universe to a quantum superposition of possible cosmic histories makes sense.
Stephen Hawking has argued that the principles of quantum mechanics forbid a single cosmic history, and has proposed cosmological theories in which the lack of a past boundary condition naturally leads to multiple histories, called the 'no-boundary proposal', the proposed Hartle–Hawking state.