The launch of Landsat 9 is trending. Here 9 facts about this NASA satellite | Video | CNN

The saying goes that a picture says more than 1,000 words.

And this applies well to the Landsat 9 project of the United States Geological Survey, which with 9 million photographs taken from space shows how our planet is changing over time.

Here we show you the launch of the satellite and we tell you more details about this project.