When gravity is stronger, the objects—a.k.a. test masses—fall faster. Earth’s gravity isn’t constant—it changes subtly all the time as mass shifts around the planet.

That makes delivering a baby and caring for one a much messier and more complicated process than on Earth, where gravity helps with everything from positioning to feeding. At the same time, the ...

Fluids float. So do people. That makes delivering a baby and caring for one a much messier and more complicated process than on Earth, where gravity helps with everything from positioning to feeding.

This fall, an asteroid will be pulled into Earth’s gravity as a temporary “ mini-moon.” While it and others are — thankfully — floating peacefully in space for now, asteroids pack a ...

NASA has selected 25 finalists in its search for a zero-gravity indicator for the Artemis II mission in 2026. The finalists ...

Astronauts Sunita Williams and Butch Wilmore, who are currently stranded in space, are due to return to Earth on March 19. However, the two astronauts may have difficulty adjusting to Earth's ...

Ariel Ekblaw remembers the moment when her future crystallized. She was 18, floating upside-down inside the hollowed-out hull of an airplane, more than 30,000 feet in the air.

Science, Oct. 2, 2014, Satellites reveal hidden features at the bottom of Earth's seas USA TODAY, Dec. 13, 2022, Fact check: Gravity allows cities on opposite sides of the world to both face 'up' ...