After a scrub on Monday, the Falcon 9 SpaceX rocket stands ready for another launch attempt at complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., Tuesday, April 14, 2015. This will be SpaceX's sixth commercial resupply services mission to the International Space Station. (AP Photo/John Raoux)

SpaceX faces stormy skies for the second day in a row as it tries to launch a shipment of space station groceries.

The unmanned rocket is set to blast off later Tuesday from Cape Canaveral, Florida. Forecasters put the weather odds at 60 percent.

The SpaceX capsule holds more than 4,000 pounds (1,800 kilograms) of supplies ordered up by NASA for the International Space Station, much of it food.

Italy is sending up a special espresso machine for Italian astronaut Samantha Cristoforetti, who's been stuck with American instant coffee since last year. The Italians in charge of the project hope to revolutionize coffee-drinking in space.

SpaceX, meanwhile, hopes to transform the rocket business by landing a leftover booster on an ocean platform. This will be the third try.

  • After a scrub on Monday, the Falcon 9 SpaceX rocket stands ready for another launch attempt at complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., Tuesday, April 14, 2015. This will be SpaceX's sixth commercial resupply services mission to the International Space Station. (AP Photo/John Raoux)

  • After a scrub on Monday, the Falcon 9 SpaceX rocket stands ready for another launch attempt at complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., Tuesday, April 14, 2015. This will be SpaceX's sixth commercial resupply services mission to the International Space Station. (AP Photo/John Raoux)