SpaceX is poised to launch its first recycled rocket today, using a booster that sent food and supplies to the astronauts living at the International Space Station in April. The goal of the launch, scheduled for 6:27 pm from Cape Canaveral, Florida, is to send a communications satellite for Luxembourg-based company SES into a distant orbit. <br/><br/>Standing at the NASA launchpad, the white Falcon 9 rocket contains a tall, column-like portion known as the first stage, or booster, that propelled the unmanned Dragon cargo ship to space last year, then returned to an upright landing on an ocean platform. <br/><br/>SpaceX, the California-based company, has for years been honing the technology of powering its boosters back to careful Earth landings on solid ground and in the water. Currently, millions of dollars worth of rocket parts are jettisoned after each launch.<br/><br/>SpaceX officials have said that reusing hardware could slash costs, with each Falcon 9 launch costing over 61 million USD, by about 30 percent.