Question: how many stars are there in the whole galazy?

Adam Hargreaves answered on 22 Jun 2017:

In our galaxy the milky way, the estimated number is 300 billion stars. 300 BILLION! Added to that, there is an estimated 100 billion galaxies in the universe, some of which will be much bigger than ours. The number is so massive I don’t think we would even be able to understand just how many!