Intense wildfires in southern California are triggering air quality alerts. Health experts know surprisingly little about how inhaling smoke affects human health, especially over the long term.

Applying actual science to forensic investigations can yield substantially different results from the findings of standard methods in the field.

The ban on Russia competing in the 2018 Winter Olympics is unique: it is directly linked to the country’s lack of sporting integrity.

After decades of diplomacy and development the two economies of Ireland are more integrated than they have been in a century.

Surgical techniques for varicose veins are becoming more refined, but not all cases require surgery. Lifestyle changes can help.

If Republicans don’t cut taxes on the wealthy when they have control of both houses of Congress and the presidency, what do they live for?

By figuring out fission, physicists were able to split uranium atoms and release massive amounts of energy. This Manhattan Project work paved the way both for atomic bombs and nuclear power reactors.

Many people have criticized Donald Trump's mental health. Recently, more than two dozen psychiatrists weighed in, from afar. Here's why that might not be good.