Astrophysics (Index)About

cosmic time

(time since the Big Bang)

Cosmic time is the time since the Big Bang. In contrast, lookback time is time from the present, going backward. In scientific study, cosmic time is of most use in describing theories of the early universe, such as events that would happen after specific time intervals following the Big Bang. Any determination of current and recent cosmic time values depends upon the Hubble constant, which is subject to future correction and refinement.

(time,cosmology,measure,Big Bang)
Further reading:

Referenced by pages:
ionized carbon fine structure line ([CII])
Hubble constant (H0)
peak star-formation epoch