In space, directions like "up" and "down" don’t really exist the way they do on Earth. Since there’s no gravity to pull everything toward one point, there's no fixed sense of direction. Astronauts and ...

Stand on solid ground and it feels obvious that “down” points toward the center of the planet and “up” leads to the sky. Yet if space stretches in every direction, the idea of something being “beneath ...

For Westerners, numbers and time run left to right. For some Bolivians, any direction will do Consider a ruler, a timeline or even weights lined up in a gym. Why are the smaller values, the earlier ...

There’s no GPS in outer space. If people get lost on the Moon, or on the way to Mars they’re pretty much screwed. NASA and Intel want to keep that from happening, so they’ve turned to AI for solutions ...

In the future, when spacecrafts are sent to other planets or when the rotation of planet Earth is studied, a new reference frame will be used. On 30 August, at the General Meeting of the International ...