The countdown to Juno's mission to Jupiter is moving ahead toward a lift-off at 11:34 am EDT, NASA said in a statement. The weather forecast is positive on Friday and there are no indications of technical issues.
The Atlas V rocket carrying the four-ton spacecraft is poised at Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida within the sight of the space shuttle launch pads to the north.
The last probe to Jupiter, Galileo, was sent aloft aboard a space shuttle in 1989. Juno's mission was inspired in part to search for answers to questions raised by Galileo's findings.
Unless you are one of the people flocking to Florida today to see the rocket launching, you're going to need an alternative method of watching the liftoff.
If you are by a computer, you can head to NASA TV for their live stream of the launch.
For the multi-taskers out there, you can also be on the lookout for up-to-the minute coverage on Twitter by following the official NASA twitter feed (@NASA) and the Kennedy Space Center's (@NASAKennedy).
Most networks will cover the launch live. Better yet, you can just watch the live feed here: