For more than a century, physics has treated space and time as the smooth stage on which the universe unfolds, a flexible fabric that bends but never breaks. A new wave of theories is now challenging ...

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 ...

Unfortunately, any work you do in the universe will have to be done the old-fashioned way. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

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

In a rare show of openness about the X-37B, Boeing Space released a video detailing how the space plane's aerobraking maneuvers help change its orbit. When you purchase through links on our site, we ...