SpaceX has been trying to launch a Falcon 9 rocket tasked with carrying a communications satellite for over a week now. After a few scrubbed attempts, the company will give it another go this evening. Today's launch is planned for 6:35PM ET at Florida's Cape Canaveral Air Force Station. Similar to previous tries, SpaceX hopes to successfully deploy the SES-9 satellite before landing the rocket at sea. Thus far, the company hasn't been able to nail the landing after three attempts -- the last of which was foiled by a landing strut failure.