Mar 27, 2012 6:43 AM by AP
ATLANTIC, Va. (AP) - After several delays, NASA has launched five rockets from Virginia that are part of a study of the jet stream.
The rockets blasted off early Tuesday from NASA's space center on Wallops Island. Bad weather had postponed other planned launches last week.
The Anomalous Transport Rocket Experiment (ATREX) will help scientists understand the jet stream, which is located 60 to 65 miles above Earth's surface. The rockets were to release a chemical tracer to form white clouds that allow scientists and the public to visualize the winds.