Mass killings in the United States dropped to their lowest level in two decades in 2025, even as Congress failed to enact any ...

A shooting last weekend at a children’s birthday party in California that left four dead was the 17th mass killing this year — the lowest number recorded since 2006, according to a database maintained ...

CHICAGO (CBS)-- The massacre that killed 19 children and two adults at an elementary school in Uvalde, Texas is putting the spotlight on gun violence in Chicago. Chicago has the dubious distinction of ...

No matter how you define a mass shooting, one thing is clear: data suggests this brand of violence has grown worse in the United States. In 2015 alone, there have been 299 shootings that killed or ...

Every mass shooting in the U.S. raises calls for better policies to prevent such tragedies. There's evidence suggesting that certain kinds of laws may reduce deaths from mass shootings, say scientists ...

An abdominal mass is an abnormal growth in the abdomen. It causes visible swelling and may change the shape of the abdomen. You may notice weight gain and symptoms like abdominal discomfort, pain, and ...

New moves by Pope Francis mean changes for Catholics dedicated to the Traditional Latin Mass —and for the priests and bishops responsible for these communities. Even though these Catholics represent a ...

The Higgs field gives mass to elementary particles, but most of our mass comes from somewhere else. The story of particle mass starts right after the Big Bang. During the very first moments of the ...

The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the ...

An abdominal mass is any abnormal growth that occurs within the abdomen. There are various causes of these masses, including cysts in the stomach or other organs, medical conditions, and cancer. A ...

If you have any familiarity with the Salem Witch Trials, you already know something about mass hysteria, also known as mass psychogenic illness. Mass hysteria refers to an outbreak of unusual and ...