Update: The launch went off as planned and the Dragon spacecraft is set to connect with the International Space Station on Sunday.
SpaceX will launch a rocket and capsule filled with 6,000 pounds of supplies into low-Earth orbit on Saturday to make a delivery to the International Space Station. The launch is set for 5:07 pm ET from Cape Canaveral in Florida.
It was initially scheduled for Thursday, but the flight was postponed due to weather.
The trip will mark the second time that SpaceX has sent this spacecraft, called Dragon, to the ISS — it also made a similar supply run in 2014. It represents the company’s 11th supply trip to the ISS as part of a contract with NASA.
As my colleague April Glaser wrote earlier this week, the fact that SpaceX is able to re-use its rockets and spacecraft is a pretty big deal. As she explained:
“Reusing rockets and spacecraft is core to SpaceX’s mission of bringing down the cost of space travel. Rockets are typically too damaged after launching to be used again, and building a new rocket can cost hundreds of millions of dollars.”
SpaceX plans to return the actual rocket, called Falcon 9, back to Cape Canaveral after it detaches from the capsule (Dragon). SpaceX has successfully returned numerous rockets over the past few years, including when it successfully launched and then landed a used rocket for the first time in March.
Dragon will stay at the ISS for about a month before returning to earth in a planned splashdown in the Pacific Ocean.
Here’s video of the launch:
This article originally appeared on Recode.net.