Science

The public health agency had previously emphasized that masks protect other people from viruses you might expel. The new advice gives a less altruistic reason to wear face coverings.

Farm worker advocates are accusing the U.S. Department of Agriculture of trying to cut the wages of farm workers who come to the U.S. on temporarily guest worker visas.

Harold McGee talks about how our sense of smell affects taste, why things smell the way they do and the ways different chemicals combine to create surprising (and sometimes distasteful) odors.

Gen. Gustave Perna says as soon as the FDA deems a vaccine safe and effective, his team is ready to coordinate deployment of tens of millions of doses as early as next month.

Four astronauts are scheduled to take a SpaceX capsule to the International Space Station on Saturday. NASA hopes to demonstrate the safety and reliability of regular crew transportation to the ISS.

President-elect Joe Biden vows to take a very different approach to climate than President Trump did over the last four years.

A team of independent advisers to the Centers for Disease Control and Prevention has a science-based outline for deploying a vaccine when it's ready. The goal is to stop deaths and viral spread fast.

COVID-19 can cause symptoms that go well beyond the lungs, from strokes to organ failure. To explain these widespread injuries, researchers are studying how the virus affects the vascular system.

The United States is the only country to back out of its promises to reduce greenhouse gas emissions. America has contributed more cumulative carbon dioxide to the atmosphere than any other nation.