Gravity may seem constant, but it actually varies across the planet—and one of the strangest places is Antarctica, where gravity is slightly weaker than expected. Scientists have traced this “gravity ...

Without the moon, life on Earth might not even be possible. At one quarter the diameter of the Earth and one sixth its gravity, our celestial neighbor plays a critical role in setting marine-life ...

A substance called antimatter is at the heart of one of the greatest mysteries of the universe. We know that every particle has an antimatter companion that is virtually identical to itself, but with ...

To live on the moon or Mars, humans will need heat and air conditioning that can operate long term in reduced gravity and temperatures hundreds of degrees above or below what we experience on Earth.

And in one of the most remote corners of the planet, beneath Antarctica, gravity is at its weakest. In a new study published ...