It acts as a map library, in case your printed documents are damaged or lost or if you unexpectedly hike off course. It has the same functionality you’d expect of a traditional handheld GPS—like ...

The European Space Agency’s Gaia spacecraft is on a mission to map a billion stars. But as it stares out into space, it also spies a lot of closer objects. The newly released image above shows the ...

Starstruck: A collage of four different Gaia maps: the speed at which stars move towards or away from us (top left); 3D motions of stars (bottom left); interstellar dust (top right); and star ...