An analysis of federal data shows a pronounced decline, despite alarming conditions found at some manufacturers.

Jeffrey Kluger's "Gemini" argues that the program was more milestone than stepping stone in the 1960s space race.

It was thought that Aedes aegypti could not survive in the Mountain West. But now, a population is thriving in Colorado.

State health officials appear to have deviated from the usual response during an outbreak after it killed two infants.

Regulations make it hard to introduce organisms that quash invasive species. Some experts see missed opportunities.

The explosion of populations east of the Mississippi was made possible by logging and the slaughter of wolves.

A longstanding push for urgent action on environmental toxins is landing in an unprecedented time in American politics.

Some experts believe CKD is the first chronic illness directly linked to climate change. Prevention may be possible.

In the 1960s, meteorologist Edward Lorenz was running weather simulations on an early computer system when he realized that a small rounding difference led to extremely divergent weather predictions.

In the beginning, the Big Bang happened, sending everything in the universe expanding outward and apart, from a dense hot point. Since then, all that matter and energy has continued to move outward, ...

In 2006, a new study on antidepressants was making headlines with its promising results: Two-thirds of participants who tried various antidepressants recovered from their depression symptoms within ...