The rocket was launched at about 5.30pm (9pm GMT) in Los Angeles on Friday.
It efficiently propelled 10 satellites into orbit an hour later.
The rocket first appeared as a crimson gentle which regarded extra like an uncommon colored star.
Because it gathered peak Californians had been in awe as they noticed a streak of sunshine streaming throughout the clear sky at sundown.
A number of celebrities joined fellow social media customers in questioning what the mysterious gentle was.
Singers will.i.am and Billy Ray Cyrus requested what the streak was.
Skateboarding legend Tony Hawk, who was 120 miles south of LA in San Diego, requested: “What is that this within the sky?”
Some customers speculated that it was a UFO and aliens had been coming to go to.
Musk, the multi-billionaire founder and lead designer at SpaceX, posted a video of the rocket within the sky and joked: “Nuclear alien UFO from North Korea.”
Danny Sullivan, Google’s public liaison for search, took a timelapse video of the rocket taking pictures over Southern California which garnered greater than 30,000 views in half an hour.
Los Angeles Hearth Division needed to challenge an alert explaining the “mysterious gentle within the sky” was the rocket launch.
The Falcon 9 rocket was launched from the Vandenberg Air Pressure Base for communications agency Iridium, which was a part of one of many largest tech upgrades in historical past, SpaceX mentioned.
Musk based SpaceX in 2002 to “revolutionise area expertise with the last word objective of enabling individuals to stay on different planets”.
The corporate designs, manufactures and launches rockets and spacecraft.