A rocket will lift off from Wallops Island, Virginia this evening.
Those living along the mid-Atlantic may be able to see the launch depending on weather conditions.
The rocket is heading for the International Space Station. This is a resupply mission that will deliver goods to the ISS.
The weather is expected to be fair for the launch. NASA says there is a 90 percent chance that the launch will go ahead.
Anyone venturing outside to look for the rocket will see a yellow or orange ball that won't be blinking.