NASA eBook: Earth at Night
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“Earth at Night,” tells the story of satellite measurements of global light in the night. Explore the brilliance of our home planet when it is in darkness. For nearly 25 years, satellite images of Earth at night have served as a fundamental research tool, while also stoking public curiosity. These images paint an expansive and revealing picture, showing how humans have illuminated and shaped the planet in profound ways since the invention of the light bulb 140 years ago.
It shows how ever-increasing instrument capability has improved the sensitivity, accuracy, coverage, and resolution of the observations. Through striking illustrations and clear explanations, the book summarizes many examples of analyses from the satellite nightlight data record—examples that themselves shine light on the ever-changing environment and our human impact on Earth.