Phil Plait tweets:

“For those lamenting “end of the space program” SpaceX just broke ground for the launch site of their Falcon Heavy.”

Vandenberg Air Force Base, Calif.– SpaceX (Space Exploration Technologies) today took another major step toward the first launch of the Falcon Heavy. This will be the world’s most powerful rocket, with more than twice the payload-to-orbit capacity of the space shuttle, but at only one third the cost of the Boeing/Lockheed Delta IV Heavy. The Falcon Heavy will be the first ever rocket to break the $1,000-per-pound-to-orbit barrier, less than a tenth as much as the Shuttle.
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Falcon Heavy is to arrive at Vandenberg by the end of 2012, and its inaugural flight will follow soon after.
http://www.spacex.com/press.php?page=20110713