Watch the Falcon 9 launch from pad 39A

A series of aviation and marine warnings suggest the launch could be as soon as Tuesday, May 27, following the Memorial Day holiday, which was confirmed by SpaceX on Friday.

A day-and-a-half after launching from Virginia aboard an Antares rocket, a Northrop Grumman Cygnus supply ship loaded with nearly 7,600 pounds of experiments and provisions arrived at the International Space Station on Friday. Astronaut Anne McClain captured the Cygnus spacecraft with the space station’s Canadian-built robotic arm at 5:28 a.m. EDT (0928 GMT).

Two U.S.-German satellites launched more than 15 years ago to measure Earth’s changing gravity field will stop collecting data in November, a few months before a pair of replacement craft will launch to resume gravity measurements, NASA officials said.