The successful liftoff was from the Kennedy Space Center at Cape Canaveral, Florida.
If the launch Monday goes as planned, SpaceX will attempt to land the first-stage booster back at Cape Canaveral Air Force Station. Across the country, cheers erupted at SpaceX Mission Control at company headquarters in Hawthorne.
The rocket's cargo was reportedly landed into low Earth orbit (LEO) which has an altitude of approximately 99 miles (160 kilometres) to 1,200 miles (2,000 kilometres). SpaceX once sued the USAF in federal court for the right to compete for national security missions, but now says it understands the decision in this particular case. "That is a handsome sight to see".
The payload for the National Reconnaissance Office, which makes and operates spy satellites for the United States, will be the first military launch for the California-based aerospace company headed by billionaire tycoon Elon Musk. Apparently the wind shear "was at 98.6% of the theoretical load limit".
SpaceX launched its first spy satellite on May 1, 2017.
That mission made a mark with the first time SpaceX launch using first-stage rocket booster toward orbital space.This launch is marking a huge jump in SpaceX's goal of drastically reducing the price of spaceflight.
USA moves THAAD anti-missile to South Korean site, sparking protests
Dozens of police lined the road, trying to block hundreds of protesters, some of whom were hurling water bottles at the vehicles. China, which is urging restraint on all sides, called for the U.S.to halt the maneuvers.
SpaceX is taking its second shot at NROL-76, a Falcon 9 mission launching from LC-39A at NASA's Kennedy Space Station. The first-stage booster was landed safely, the fourth time SpaceX has been able to bring their boosters back.
The SpySat, called NROL-76, was sent to orbit by SpaceX this Monday, May 1, after the original launch set last Sunday, April 30, was scraped.
Billionaire Musk managed to win the contract instead of the United Launch Alliance - a partnership between Boeing and Lockheed Martin that previously had a monopoly.
The company said it will attempt another launch at 11.00am GMT on Monday.
SpaceX also has a pair of launch contracts coming up for the Air Force to send Global Positioning System satellites into orbit.