THE UK is about to play host to an unprecedented space mission, which could turn the country into a home of new rocket launches.

It will be the first ever rocket launch from UK soil, as well as the first time that satellites have been launched from Europe.

As long as there are no last-minute technical hitches and the weather in the far south-west of Britain behaves, a converted Boeing 747 will take off from Spaceport Cornwall, fly out across the Atlantic and launch a rocket that will propel nine satellites into space.

Virgin Orbit’s Start Me Up mission on Monday night will be the first launch of satellites from British soil and is being heralded as the start of a new space era for the UK.

Speaking on a more down-to-earth form of transport – a Devon double-decker bus but with a great view across to the 747 – Ian Annett, the deputy chief executive of the UK Space Agency, said: “We’re all greens at the moment but of course there’s a number of gremlins that can trip you up at the last moment.

“We’re watching the weather closely but one of the advantages of horizontal launch is that you can quickly get above the weather. It’s looking all right for later.”

Tickets to watch the plane take off were snapped up by members of the public within hours of being released.

Given that the mission is named after a Rolling Stones song, it seemed appropriate that the event had the trappings of a music festival.

There were food stalls and a merchandise stand selling beanies, T-shirts, even a Cornish Spaceport-branded bellyboard (£75). Spectators could take selfies in front of a replica of the LauncherOne rocket that will whiz the satellites into orbit.

There was a big screen that will track the mission and – the staple of any modern festival – a VIP section with leather armchairs. Plus a marquee with a silent disco, which promised to be a useful way of staying warm.

The spectators should see the plane, flown by Sqn Ldr Matthew Stannard, an RAF test pilot, take off from the spaceport runway and fly over the Atlantic towards Ireland.

About an hour after take-off, the rocket will be detached at 10,700 metres (35,000ft). It will fall for a few seconds before it ignites and shoots southwards, gathering speed and altitude as it passes Portugal and the Canary Islands.

At about 1.30am on Tuesday, Virgin Orbit’s mission controllers – and the crowd – should know whether the rocket has successfully delivered the satellites in orbit.

Among those with satellites onboard are the UK’s Ministry of Defence, the sultanate of Oman, the US National Reconnaissance Office and British startups including the Welsh company Space Forge, which is developing reusable satellites.

If all goes well, it will be a triumph for north Cornwall, which has faced scepticism over the years that such a mission could be launched from an area more associated with surfing than space adventures.

Melissa Thorpe, the head of Spaceport Cornwall, which is based in a corner of the commercial airport, said: “I hope people will feel some inspiration, some aspiration, and feel proud of how we are representing Cornwall going to the stars. There’s a lot of doom and gloom out there. It’s exciting, different, it’s also a bit of an underdog story.”

UPDATE: Expected take-off time moved forward

SPACE launches are often subject to delay – but tonight, it looks like things are moving forward.

Cosmic Girl, the aircraft carrying the LauncherOne rocket, will start moving down the runway at around 9.30pm, with the wheels going up about 15 minutes later.

The original launch window had the craft taking off at 10.16pm at the earliest, so this move things forward by half an hour.

LauncherOne is due to blast off from the plane between an hour and 90 minutes after take-off.