How big is BIG?
How many Earths would it take to fill up the sun?

How about way over a million!

How deep is DEEP? What goes on at the center of a star
where a teaspoon of atoms weigh as much as a car?
Or when a small black hole
can swallow stars whole, then where do they go?

How far is FAR?
Where is the edge of our Universe?
Is there other life between here and there?

How about forever or infinity?
Can you measure THAT?

Our Universe is so grand that even giant stars, all in a line, are just grains of sand spinning on the shores of time. What time is it anyway?

You are about to enter a virtual world where you can go slow and even stop time! Or go so fast that you will be out of sight as you zoom beyond the speed of light.

You will see things that the naked eye has never seen before. Oh, it's true that NASA satellites and space telescopes may have peeked there before so all those secrets to our Universe are gathered right here for you to experience.

Where should you go first? Get to know our very own star system, our system of Sol, better known to you as our Solar System.

SOME GOOD ADVICE: You will need to learn a few navigation tricks if you want to travel smartly. For starters, it will help you greatly to print out the keyboard shortcut key list.