What you need to get together

With wildfires burning in the western United States, smoke fills the air. This is an animation of the air quality during the past couple of months.

How do couples meet now and how has it changed over the years? Watch the rankings play out over six decades.

Median income only tells you where the middle is. The distributions of income are a lot more interesting.

When one goes down, so does the other. If only there were a way to keep more people healthy.