Ares I-X rolling out...

to launch pad 39B at the Kennedy Space Center in Florida early this morning, shown here outside the Vehicle Assembly Building (click to enlarge). This is NASA's first new rocket in more than a generation, and its first test launch is scheduled for 27 October. This launch vehicle is enormous, standing 327 ft (100 m) tall, more than twice the height of the space shuttle. Link to NASA's Ares I-X web page.

UPDATE: The test launch of Ares I-X will delay the lift-off of space shuttle Atlantis until 16 November. Previous related post.