The Food and Drug Administration gave Johnson & Johnson's Covid-19 vaccine the green light for emergency use on Saturday -- another historic milestone experts say will help get the country a step closer to returning to normalcy.

When Teresa Ferrin found a Purple Heart at the Phoenix thrift store where she works, she knew it had to be important to somebody.

For the thousands of people who work on a spacecraft that journeys to Mars, the result of their efforts often remains unseen once it leaves Earth. That all changed this week when NASA's Perseverance rover returned the first-ever video of a descent through the Martian atmosphere and safe land…

A 5.3 magnitude earthquake was felt in Anchorage, Alaska, on Saturday morning, according to officials.

A second former aide has come forward with sexual harassment allegations against New York Gov. Andrew Cuomo, who responded with a statement Saturday saying he never made advances toward her and never intended to be inappropriate.

Dozens of vehicles crashed into each other Saturday on an icy interstate highway bridge over the Yellowstone River outside Billings, Montana, making the span appear like a wrecking yard with mashed cars and trucks.

The US Food and Drug Administration authorized Johnson & Johnson's Covid-19 vaccine Saturday. It is the first single dose Covid-19 vaccine available in the US, and is one that "checks nearly all the boxes."

A police officer in northern Virginia was shot to death Friday afternoon during a traffic stop, and responding law enforcement fatally shot his killer, authorities said.

NEW ORLEANS (AP) — A police officer working security at a high school basketball game in New Orleans was shot in the chest by a man who was denied entry into the game, authorities said.

Two skiers navigated a thin layer of snow with no margin for error down the precipitous shoulder of Half Dome in Yosemite National Park and alternately skied and rappelled back to the valley floor in an unusually daring feat.