SpaceX will attempt to launch its Falcon 9 rocket carrying the Dragon spacecraft again following a failed attempt yesterday (13 April).
The private company had to postpone the launch because of poor weather conditions, saying it will try again today at 4.10pm EDT (9.10pm GMT) – however, current conditions do not look promising.
"As for tomorrow's forecast, it's slightly worse tomorrow with forecasters predicting a 50% chance of acceptable conditions," Nasa said in a statement.
The Dragon spacecraft is SpaceX's sixth commercial resupply mission to the International Space Station.
The spacecraft is carrying over 4,300lbs of supplies and payloads, including materials for 40 science and research investigations taking place on board the space station.
It will also be carrying a special espresso maker for Italian astronaut Samantha Cristoforetti, created by Italian coffee company Lavazza and engineering company Argotec.
You can watch the launch live online below.