A sunrise heralds as the countdown continues for the launch of a United Launch Alliance Delta IV Heavy topped for its flight test.

A spectacular sunrise at NASA's Kennedy Space Center in Florida heralds the arrival of a new era in exploration as the countdown continues for the launch of a United Launch Alliance Delta IV Heavy topped by the agency's Orion spacecraft for its first flight test. For more information, visit www.nasa.gov/orion Photo credit: NASA/ Kim Shiflett