Pfizer's COVID-19 vaccine has become the first in the U.S. to receive full approval from the FDA for people ages 16 and up.

Erika Kirk recalls the emotional fog of Charlie Kirk's assassination, addresses conspiracy theories and takes questions ...

Its last close encounter was in mid-September, the closest one yet, passing just 3.8 million miles from the solar surface. It passed through the boundary between outer space and the region where the ...

Each December, the Geminids meteor shower paints the sky with spectacular streaks of light. The source of this stunning ...

A sleep-inducing molecule humans use to make proteins was found, along with other amino acids, on an asteroid named Bennu.

Of the seven Earth-sized planets circling the red dwarf star TRAPPIST-1, one world has become a special focus for astronomers. This planet ...

TRAPPIST-1e, an Earth-sized world in the system’s habitable zone, is drawing scientific attention as researchers hunt for ...

Human bodies are exquisitely tuned to one world, and it is not a forgiving one. Strip away our technology and even Earth ...

The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...

Monumentally important, this is the first image of an American astronaut in space. In the Project Mercury spacecraft named ...

A view of the first U.S. spacewalk, this is an image of astronaut Ed White over New Mexico and Southern California. This ...

Astronauts Tom Stafford and Wally Schirra delighted mission control with their rendition of the Christmas classic ...