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 ...

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 ...

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 ...

An unusual signal has been detected coming from center of the Milky Way - or that direction. The findings have been reported in The Astrophysical Journal. The pattern of radio waves does not fit with ...

Man or machine, the navigator of a spacecraft traveling toward a distant planet has a delicate problem: when there is no gravitation, there can be no sense of direction. In three-dimensional space, it ...