| Author: | Stefano |
|---|---|
| category: | Astronomy |
According to recent results from WMAP, the universe is 13.73 ± 0.12 billion years old. Moreover, the ordinary matter accounts less than 5% of the constituents of the universe (energy and matter), and the universe is practically flat, in the sense that the geometrical rules are those of an euclidean geometry.
This seems to provide even more convincing support for the Big Bang model, and the density parameter Ω very close to 1 seems to rule out the big crunch and so a cyclic existence of the universe.
Putting things into perspective with the geological clock it means that it took approximately 10 billions years for the Earth to form.