Starship is tasked with carrying two astronauts from lunar orbit to the surface of the Moon as part of NASA's Artemis 3 ...

An ingenious illustration by Swedish artist Karl Jilg ... and sidewalks as shallow ledges to show how little space pedestrians are allowed to inhabit in a typical intersection.

The galaxies, each as vast as the Milky Way, are baffling because most scientific models for galaxy evolution suggest ...

At a distance of approximately 15 billion miles (24 billion kilometers) from Earth, Voyager 1 continues to push the boundaries of human exploration. At this distance, it takes almost a full day for a ...