Nevertheless, whether it be because of or despite its uniqueness, time as a dimension for physics to play out in has long received far less attention than space. Recently though, rapid progress in ...

The President announced plans to develop a space-based missile-defense system—but concerns abound, including over costs.

Astronaut time and research time on the space station ... although Russia says it will withdraw after 2024 to focus on building its own space station around 2028. How the station will be operated ...