NASA Home Page JPL Home Page Caltech Home Page
NASA - Jet Propulstion Laboratory + View the NASA Portal  
JPL Home JPL - Earth JPL - Solar System JPL - Stars and Galaxies JPL - Technology
Shell image/ Home button Fundamental Physics in Space
The Story of Our Search
Shell image / home button
The Story of our Search
Fundamental Physics
Sensational Symmetry
Big Bang and Beyond
It's About Time
Quantum Questions
Adventures in Science
Technical Details



cover time Time. It's hard enough to get a handle on that here on Earth. It escapes us, we say.

It gets even more complicated as we try to understand it in a Universal context. It may not be as linear as we think, with a strict past-present-future march forward. Its rate may vary depending on where you are in the Universe. It might stop completely at the heart of black holes, creating "mini-eternities" throughout the Universe.

Did you know that time on Earth runs slower than it does for satellites that spin hundreds of miles above us? And time is the Fourth Dimension too? What can that possibly mean?

If you've ever joked about being lost in the spacetime continuum--or even dared to use it in a sentence without really knowing what you were saying--you're in the right place. Stick with us and you'll learn about the mysteries of time. "After" you've been down this path, the idea of time will never be the same again.

Read more on Time...

Last Updated:

link to First Gov NASA logo