The NASA rocket launch, which has been postponed several times now due to inclement weather, involves the planned release of gases in the jet stream to observe wind patterns.
The launch of five suborbital rockets from Virginia's coast is being rescheduled again. NASA engineers have had to cancel the launch several days in a row due to bad weather.
On the most recent try late this week, cloudy skies at three viewing sites in Virginia, New Jersey and North Carolina forced the agency to postpone again.
The rockets are part of a jet stream study. If all goes well following a successful launch, the rockets will release a chemical tracer from white clouds, which will allow scientists and the public to visualize the winds.
Scientists say when the launch is finally underway, residents from South Carolina to southern New Hampshire should be able to see the cloud vapor for up to 20 minutes.