Evolution

[Abishalom]

The universe is 13.7 by according not only to redshift, but also by several other things such as the age of white dwarf stars. As with the age of the earth, there are multiple lines of evidence.

Well it was about 15 billion a few years ago (I have the textbook). But we talked about all that. Heck I still look at the sky at night to recognize certain planets because of that class lol.

Yes, some years ago it was thought to be older, due to some inaccuracies in measurements and such that have since been resolved.

How old is your textbook? It's been several years since the 13.7 by figure was established. As in many.other disciples, in astronomy it's important to use the most current data.

IDK I took the class a few years ago. It was the newest at that time. It's not really that important though.