Scientists are waiting in anticipation - one more day.

Plans are set for the Large Hadron Collider, a multibillion-dollar particle accelerator, to produce its first beam. It will be seven times more energetic than any previous machine. The collider will be used to search for signs of invisible "dark matter" and "dark energy" and undiscovered particles thought to give matter mass. Some people fear that the collider may destoy the world but the scientific community has assured us that it would never happen.

If you would like to follow the news on the event, or read about the final testing at CERN, the Europ0ean Organization for Nuclear Research.

We live in a fascinating time.