Data: Gallup World Poll Quantifying happiness isn't an easy task. Researchers at the Gallup World Poll went about it by surveying thousands of respondents in 155 countries, between 2005 and 2009, in order to measure two types of well-being..
We've been recording global surface temperatures since 1880, the beginning of what meteorologists call the modern record. In that time, worldwide temperatures have been on the rise.
After fourteen years of preparation and three years of collecting data, we now have an atlas of the entire infrared sky. This image is just the capstone for a cosmic map that contains 18000 images and 560 million different objects.
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