Engineers have had to come up with some interesting ways to generate oxygen for astronauts in the vacuum of space.

This isn't like some low-gravity version of "The Terminal," in which travelers are stuck in limbo due to some administrative ...

On Earth, breathing is effortless because oxygen is everywhere. But in space, there is none. Astronauts rely on carefully designed systems to survive. Their lives depend on oxygen supplies and backup ...

We don’t know for sure, but the answer is inextricably linked to the moment when water first materialized in the cosmos — and ...

Primordial supernovae got the ball rolling a quick hundred million years or so after the start of the universe.

NASA's Webb telescope has captured images of multiple planets in a nearby star system, confirming that Webb can infer exoplanet atmospheres' chemistry.

Space is one of the most dangerous frontiers, yet astronauts have repeatedly defied death through skill, technology, and ...

University of Arizona astronomers have learned more about a surprisingly mature galaxy that existed when the universe was ...

In space, microgravity means that astronauts like Sunita Williams and others face obstacles in all their daily routines on ...