Whether space-time exists should be neither controversial nor even conceptually challenging, given the definitions of "space-time," "events" and "instants." The idea that space-time exists is no more ...

Oftentimes, we think of space as an endless, mostly empty vacuum, a silent backdrop where planets, stars, and galaxies play out their dance. We also think of time as something separate, a steady ...

NATIONAL HARBOR, Md.— A new Space Force planning document predicting future enemy trends through 2040, designed to help officials better acquire key technologies and prioritize missions, should be ...

A mathematical test for the nature of space-time – the fabric of physical reality – may be the first step towards novel computer-like devices that process information using gravity. Eleftherios-Ermis ...

The next year is crucial for the future of NASA and its plans to extend human activity in low-Earth orbit. For the first time in decades, the US space agency faces the not-too-distant prospect of ...