How many stars are there

How Many Stars in the Universe?

There are about 1,000,000,000,000,000,000,000 stars in space, or about 10 raised to the 21 (10 21 power, roughly.

Scientists estimate that there are about 1 000 000 000 000 stars in the Milky Way galaxy, which is one of ~1 000 000 000 000 galaxies. Although these are rough estimates, using these numbers we might imagine there are…a lot…of stars. The number is so large we usually write it in a special way. The number is 1 000 000 000 000 000 000 000 000, which has 24 zeros, so we write it as 1024.

source: ucsb.edu