Q. Is time the same in space?
Answers
The phrase came from Einstein's Theory of Relativity that joined space and time and created the idea of a fabric that permeates the whole universe "space-time." We all measure our experience in space-time differently. That's because space-time isn't flat it's curved, and it can be warped by matter and energy.
So depending on our position and speed, time can appear to move faster or slower to us relative to others in a different part of space-time. And for astronauts on the International Space Station, that means they get to age just a tiny bit slower than people on Earth.
That's because of time-dilation effects. First, time appears to move slower near massive objects because the object's gravitational force bends space-time.
The phenomenon is called "gravitational time dilation." In a nutshell it just means time moves slower as gravity increases.
That's why time passes slower for objects closer to the center of the Earth where the gravity is stronger.