| Date | Event |
|---|---|
| June 01 2003 | China Fills Three Gorges Dam Reservoir |
| June 02 2003 | Europe Begins Space Exploration With Voyage To Mars |
| June 05 2003 | Heat Wave In Pakistan-Indian Breaks Record |
| June 10 2003 | NASA's Spirit Rover: Mars Exploration Beginning |
| June 20 2003 | Wikimedia Foundation Founded In St. Petersburg, Florida |
| June 26 2003 | Supreme Court: Gender-based Sodomy Laws Unconstitutional |