ATK to test Ares five-Segment SRB

Assembled five-segment solid rocket booster for Ares 1,
July 1 (NASA/ATK/RedOrbit/Astroengine)

Promontory, Utah - Alliant Techsystems and NASA "will make history," August 25 as the new Ares I five-segment SRB first stage is tested, "marking the start of a new era of space exploration."

Details and Specs HERE.