mayan calender 12-21-2012
You have probably heard about the famous Mayan Long Calendar that is set to end its final baktun (cycle) on December 21st, 2012. This end has caused many to sit up and take notice because they are uncertain .
How to Learn a Star's True Age
For many movie stars, their age is a well-kept secret. In space, the same is true of the actual stars. Like our Sun, most stars look almost the same for most of their lives. .