SpaceX scrubs Northrop Grumman Cygnus spacecraft launch to the International Space Station due to poor weather

The launch of more than 8,200 pounds of science and cargo supplies to the International Space Station will have to wait a bit longer. Poor weather conditions forced the planned launch to push to no earlier than Sunday, Aug. 4. at 11:02 a.m. EDT (1502 UTC). When it launches, a Northrop Grumman-built Cygnus spacecraft will begin a roughly two-day journey to the orbiting outpost following its launch atop a SpaceX Falcon 9 rocket. Spaceflight Now will have live coverage of the launch beginning about 1.5 hours prior to liftoff. More

(Source: SpaceFlight Now - Aug 4)