Tonight’s countdown to the launch of Orbital ATK’s CRS-6 mission to the International Space Station is progressing smoothly toward an 11:05 p.m. EDT liftoff. Cryogenic tanking is underway now as the weather forecast remains 90 percent “go.” The Cygnus spacecraft is set to lift off on a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, carrying nearly 7,500 pounds of supplies and science investigations. Our continuous countdown and launch coverage will beg in at 10 p.m. here and on NASA TV. Photo credit: NASA/Ben Smegelsky
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