The live stream above will show SpaceX's historic resupply mission to the ISS which is scheduled for 3.36pm GMT (10.36am EST).
Perhaps the bigger question is whether the technical problems with the launch have been solved.
Today's attempt had been pushed back several times in the last two weeks, most recently because SpaceX detected particles in the second stage fuel system. As a result, it needed to conduct "full inspections and cleanings".
Meteorologists are predicting a 90 per cent chance of favourable weather for liftoff of the SpaceX Falcon 9 rocket carrying a Dragon spacecraft, NASA said.
SpaceX plans to launch its first recycled rocket for NASA Friday morning. About eight minutes after launch, the Falcon 9's first stage will attempt to land at SpaceX's Landing Zone 1. It'll dock at the space station for around a month, with its supplies being unloaded, and return cargo being loaded up, before returning to Earth and splashing down in the Pacific Ocean.
Image Elon Musk aims for SpaceX to help colonise Mars
Elon Musk's space company will launch its fourth previously flown booster rocket today (Dec. 15) in a mission to the International Space Station.
Three ignitions of the first stage engines after separation will steer the booster back toward Florida's Space Coast from the northeast.
"Team Vandenberg is excited to begin and end 2017 with Falcon 9 launches", Hough said.
Vandenberg Air Force Base will aim to close out 2017 a lot like it began the year - with a successful launch of 10 satellites into orbit for Iridium Communications.
The Falcon 9 will blast off from the Space Launch Complex 40 (SLC-40) at the Cape Canaveral Air Force Station.