How Many Stars Are in the Milky Way?

The Milky Way is the galaxy in which the Earth resides. Part of it is visible on a clear night from Earth, as a thick band of stars stretching across the sky. We can see thousands of these stars with the naked eye, and many more in a telescope. But how many stars are in the Milky Way?

“It’s a surprisingly difficult question to answer. You can’t just sit around and count stars, generally, in a galaxy,” said David Kornreich, an assistant professor at Ithaca College in New York. He was the founder of the “Ask An Astronomer” service at Cornell University.

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