The Sounding Rocket launch at Wallops Flight Facility has been canceled yet again due to cloud cover.
It was the sixth attempt and another is scheduled for this evening after 9 p.m.
The mission requires clear skies so that scientists can track the red and blue-green vapors that will be released over a 100 miles above the earth.
Scientists will use the vapers to track the motion of particles in space.
When dispersed they will be visible in the mid-Atlantic region from New York to North Carolina.
