Elon Musk will release his plans for the "Hyperloop," a super fast form of transportation this afternoon at 1:30 Pacific time.

In a tweet, he teased that he was up all night, with others, putting the final touches on the plan. We'll have full coverage of the Hyperloop as soon as it's announced. 

For the most part, the Hyperloop is a mystery. 

Musk has teased it by saying it will be able to get people from San Francisco to Los Angeles in 30 minutes. He described it as a "cross between a Concorde, a railgun and an air hockey table."

He will not build the Hyperloop himself. He's going to released the design and hope someone else does it.