| Title | : | Deep Time Crash Course Astronomy #45 |
| Duration | : | 15 minutes, 15 seconds |
| Uploader | : | CrashCourse |
| Added On: | : | 14 January, 2016 |
| Views | : | 2.3M times |
| Likes | : | 0 |
| Source | : | YouTube |
As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our Universe’s days are numbered. Stars will die out after a few trillion years, protons will decay and matter will dissolve after a thousand trillion trillion trillio
