NextPrevious

Astronomy and Space

Exploration

What is meant by the phrase “greening of the galaxy”?

The expression means the spreading of human life, technology, and culture through interstellar space and eventually across the entire Milky Way galaxy, Earth’s home galaxy.

Close

This is a web preview of the "The Handy Science Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App