Phase one of world's first commercial spaceport is now 90% completed - in time for first flights in 2013

The 1,800-acre Spaceport America site, in Las Cruces, New Mexico, is the home base for Virgin Galactic, Richard Branson's most ambitious business venture yet.

It already boasts a runway stretching to nearly two miles long, a futuristic styled terminal hanger, and a dome-shaped Space Operations Centre.

Flight of fancy? Spaceport America is billed as the world's first purpose-built commercial spaceport

The work is now just months away from completion, according to a spaceport spokesman, and is set to be done by the end of the year, well in time for the first expected Virgin Galactic spaceflights in 2013.

Christine Anderson, the newly appointed executive director of the New Mexico Spaceport Authority, told SPACE.com she was 'jazzed' about the progress made so far.

'When you think about what a feat that is, to build all that anywhere, but then to build it in the middle of the high desert in New Mexico — that’s a small city that was built,' she said.

'So hats off to all the contractors and architects and everybody else that spent a lot of time and sweat equity in its development.'

But Ms Anderson has already met challenges. No sooner had she started in her new job, the New Mexico legislature slashed the spaceport office budget by more than half.

And there is no firm date yet for Spaceport America to begin operations.