Rocket scientists from NASA mission control in California to a business park near Aylesbury are celebrating as the Jupiter probe Juno began orbiting our solar system's biggest and oldest planet on Monday July 4.
After a five-year space flight and 1.74 billion miles, NASA erupted in cheers as the message "Welcome to NASA" flashed up on screens in mission control in California.
But they were also celebrating at Westcott Venture Park near Aylesbury, base of Moog-ISP , the company that built the brake engine that put the spacecraft into orbit.
The LEROS 1B brake engine, designed and built by a team of 20 at Moog-ISP, fired for 35 minutes to slow the spacecraft by 1,212mph to enable it to achieve orbit.
Juno is the not the first spacecraft to reach Jupiter - Galileo previously made the journey - but no craft has been able to get so close to the planet and remain operational.
Rob Selby, site manager at Moog-ISP, said: "This mission is about understanding the origins of the solar system.
"We have sent probes to Jupiter previously but they didn't get to look at the surface because of a cloud of gas and it couldn't penetrate very well.
"Juno ducked beneath the clouds and will scan the surface.
"Jupiter is believed to be one of the first planets, so we will learn more about how the solar system began."
Juno, which was launched on August 5, 2011, is a spinning, robotic probe as wide as a basketball court. It travelled a roundabout route of 1.74billion miles because it needed to be fired like a slingshot by the Earth’s gravity to reach its destination.
Jupiter is a huge ball of gas 11 times wider than Earth. Juno will circle it 37 times, around 2,600 miles above the planet’s dense clouds, for two months.
Buckinghamshire Thames Valley Local Enterprise Partnership chief executive Richard Harrington was one of the first to congratulate Moog-ISP for the role it played in Juno's success.
He said: "We are delighted by the success of the Juno mission, which features rockets built by Moog-ISP who are based at the Westcott Venture Park, one of the sites that form the Aylesbury Enterprise Zone.
"At Westcott we are working with the UK Space Agency to develop the research capacity at the site, including a Satellite Application Catapult and a 5G Innovation test facility which, together, will help support a growing number of new jobs and business investment opportunities to the Buckinghamshire area."