If I were a rich man...
Money is also the reason why the UKSA isn't getting straight on the road to manned missions.
"In a perfect world, we'd love to do it, but of course we're not in a perfect world economically at the moment," Williams lamented.
But while there aren't billions to be handed over to the agency, it nevertheless is seeing funding from the government.
In November last year, the Chancellor of the Exchequer George Osborne promised half a billion pounds for science projects, including £21m to start another of the UKSA's satellite missions, NovaSar.
It's not anywhere near enough for a single satellite, but the agency already has backers in industry to make up the shortfall.
"The projected cost was £21m from the agency and about a £150m from other sources, ie, from industry, to complete the full satellite series, with an initial commitment for the first satellite on both sides. We think the first one will be in the order of about £45m all told," Williams said.
The object is to have a four-satellite constellation eventually, which will be put to all sorts of uses.
"At this stage, we have no specific plans, but we have a wide range going from marine surveillance right through to deforestation and polar monitoring," he said. "We intend to have an allocation of time pro rata to our contribution, which is about 15 per cent. So we'd expect to get time to allow the agency to work with scientists and departments across government to illustrate the value of the data sets."
Although this is a much larger satellite than the UKube will be, the agency is aiming to send it up by 2013, or 2014 at the latest.
In the next few years, UKSA will also be working on the ESA's ambitious Martian plans, the ExoMars project. ExoMars hopes to have an orbiter in place by 2016, followed by a rover for the surface in 2018.
"UKSA is heavily involved in that, we're the second largest contributor, we're looking at being the prime on the rover itself and on the Life Marker Chips*," Williams said.
And that's not the end of the UKSA's Martian ambitions.
"If that project pans out and moves forward, the next step is to be involved in a Mars sample return programme where you actually go to Mars, collect samples, and bring them back to Earth," the agency chief said, adding that he hoped the UK would be the place the samples returned to.
"It's a fairly major challenge, but you need these challenges in life," he laughed.
But again, it's all about international collaboration, because none of the agencies could bear the cost of the project alone.
"The aim was to be ESA and NASA, whether NASA will stay with us is open to question," Williams said. "But it will be a major programme and by the time it gets off the ground it will probably almost be global, almost like the Space Station – a combined effort."
Most of the agency's partnerships so far have been with Europe, and by extension NASA, but Williams said UKSA was also in talks with Roscosmos and the Chinese Space Agency.
"It's a changing world in space with countries maturing and some countries wanting to move in. And it's not just about science any more so we have to start working with countries on a bilateral basis as well as on a collective basis," he said.
Science is one of the reasons the UK wants its own space agency, but it's the bits that aren't about science that are really driving investment.
"The world at large uses space completely now in everyday life. Not only broadcast communications and satellite TV, but a lot in the background of how people work - the use of GPS, etc, all involve space," Williams said.
"Nearly everything the MoD does has a space component somewhere so you've got to be at the very least an intelligent customer, you need to understand the technologies. We've decided we want to maintain our technology capabilities so the agency gives that focus." ®
*The Life Marker Chips are a science experiment intended to analyse Mars' chemical make-up to try to answer THE question about the Red Planet: whether it has the conditions for life.
Um..I realise the article is about the UKSA but perhaps it'd be nice if it mentioned somewhere that there are already many UK built satellites in orbit. We actually have a very strong and competent satellite manufacturing industry. It's only our government that is reluctant to get involved in space - UK private enterprise is heavily involved.
The 200 people in the board room spending 2 months arguing about what colour they should paint the landing gear.
While the 3 people on the production line sit idle while they wait for an answer.
Watched over by 50 Health and Safety representatives.
Return on investment
"It has a much better chance of a return on investment"
Well, yes, sort of. But as soon as the investor is the government, there will be a negative return on investment. The spec would be changed every month. After a couple of years, the spec and design will look like each part was designed by someone wearing a blind-fold and not knowing what anything else in the project was like.
Eventually, there would be a series of reviews, and eventually hourly pregress reports at which point it would be dropped and everyone would say the idea was crap, or that the poor sods working on it were incompetent.
Keep the government out of our space projects.