The term Big Bang generally refers to the idea that the Universe has expanded from a primordial hot and dense initial condition at some finite time in the past. According to the ESA/Planck data, released in February 2015, the initial conditions occurred 13.799 ± 0.021 billion years ago, and the Universe continues to expand to this day.
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This category has only the following subcategory.
- ► Inflation (cosmology) (22 P)
Pages in category "Big Bang"
The following 30 pages are in this category, out of 30 total. This list may not reflect recent changes (learn more).