The Search for Extraterrestrial Intelligence (SETI) is regularly plagued by the fact that humanity has a very limited perspective on civilization and the nature of intelligence itself. When it comes ...

Could Earth have hosted an advanced civilization before humans? This intriguing question is at the heart of the Silurian Hypothesis, a theory that challenges our understanding of Earth’s history. By ...

Global temperature increases over the past thirty years, visualized. Credit: NOAA/NCEI Earth's average global temperatures have been steadily increasing since the Industrial Revolution. According to ...