Glowing in the brilliant-white xenon lights around Launch Pad 39B at NASA's Kennedy Space Center, the Ares I-X flight test rocket is poised for an 8 a.m. EDT liftoff.

Shuttle on one pad, Ares I-X on another.

Ares I-X on the launch pad, waiting for the 27th.

Those KSC Xenon lights really show it off.

This is a huge rocket!

Ares I-X rollout to the launch pad is underway!

In the VAB, the 327-foot tall Ares I-X rocket is silhouetted against the light flowing in from open panels in High Bay 3.

For the first time in more than a quarter-century, a new space vehicle stands ready in the Vehicle Assembly Building.

Super Stack 5 is being lifted by the yellow framework, nicknamed the "birdcage."

Super Stack 5 being lifted up and over to be mated to Super Stack 4.

Ares I-X Super Stack 2 of 5 has gone up and over.

The Ares I-X vehicle is growing.

The final motor segment for Ares I-X has been stacked on the Mobile Launcher Platform.

The final motor segment for Ares I-X moves to the VAB.

The forward center motor segment for Ares I-X was mated yesterday on the MLP.

The forward center motor segment is now in the VAB ready to be stacked on the MLP tonight.

Second of four motor segments now stacked on the MLP.

Second motor segment now in the VAB for stacking on the aft assembly tonight.

The stacking of the Ares I-X aft assembly on the MLP is complete. The second motor, the aft center, will be stacked tonight.

The Ares I-X aft assembly is on its way to the Vehicle Assembly Building to be stacked on the Mobile Launcher Platform.