The Antares rocket launch from Wallops Island, Va., which is scheduled for 8:03 p.m., is expected to be visible to millions along the East Coast, according to NASA.
The mission is conducted by Orbital ATK, which has contracted with NASA for a series of supply missions to the space station.
Named CRS OA-5, it's the seventh planned flight of the unmanned resupply spacecraft to the space station for NASA.
The rocket for this mission is named the SS Alan Poindexter for astronaut Alan G. Poindexter, a space shuttle commander who died in a 2012 water sports accident.
The rocket will appear as a bright moving star, as the first stage uses kerosene and liquid oxygen as propellants. Observers who use binoculars might also be able to see a short contrail.
For updates on the mission, check this report from NASA.
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