Hot sauce is good for your health from Mental Floss

Take a virtual tour of Machu Picchu, one of the new 7 Wonders of the World from Open Culture

New discovery solves one mystery of Stonehenge’s construction from National Geographic

What Alzheimer’s feels like from the inside from Nautilus

TIME picks the best space photos of 2015 from Time

How Nikola Tesla predicted the smartphone from Time

This weekend, the Geminid meteor shower promises to be awesome from Popular Science