New light shed on Charles Darwin's 'abominable mystery'

Climate change will cause a shift in Earth's tropical rain belt — threatening water and food supply for billions, study says

The Microbiota–Gut–Brain Axis and Alzheimer’s Disease: Neuroinflammation Is to Blame?

In less than a half second I captured the International Space Station transiting the face of the moon. Here's a close up video, tracked to the station and slowed. Real time video in comments.