For a long time, scientists assumed that Earth's water was delivered by asteroids and comets billions of years ago. This ...

Starting smoking at a younger age is associated with substantially higher risks of myocardial infarction, stroke, and death, ...

A recent large study conducted in Sweden has found that long-term exposure to elevated levels of air pollution may increase ...

When a NASA scientist finally cracked open a cache of 50-year-old lunar soil, the expectation was to refine old models, not ...

The federal government awarded a $1.1 million contract to an Ohio company to conduct a pilot project deploying a technology to kill bacteria and eliminate odors in the sewage-tainted Tijuana River. It ...