In this task, you are given an article. Your task is to summarize the article in a sentence.

Input: Consider Input: DigitalGlobe's WorldView-3 spacecraft will return pictures of the Earth's surface down to a resolution of 31cm.
Until recently, the company was restricted to selling images sharper than 50cm only to the US government.
DigitalGlobe's products will be familiar to anyone using Google or Bing maps - both run on views captured by the firm's satellites.
But its pictures also find wide application in areas such as scientific investigations, urban planning, forestry and agricultural monitoring, and in mineral exploration.
WorldView-3 is an important moment for the Longmont, Colorado-based company, however.
The market place for commercial Earth imagery is getting increasingly competitive, and being able to go to sub-0.5m resolutions gives DigitalGlobe a stand-out advantage over its rivals.
"It's important for them to be able to differentiate themselves by being able to say, 'we have the most high-resolution and highest-accuracy data available'," commented Adam Keith, the director of space and Earth observation at industry-watchers Euroconsult.
"That's a strong statement to make when there are new systems entering the market. It won't necessarily open up new markets for them, but it will certainly allow them to better serve the markets they already have."
There are still some security concerns over releasing such powerful imagery on to the open market.
The US Commerce Department, which licenses American commercial satellite imagery providers, says DigitalGlobe must wait six months before putting out any 31cm products.  This will give the authorities time to assess any unforeseen issues or sensitivities.
The current benchmark is set by DigitalGlobe's GeoEye-1 satellite, which was launched in 2007.
Its systems can deliver a 41cm capability in the panchromatic mode (essentially black and white images).
WorldView-3 is another step forward again, says Rob Mitrevski from Exelis Geospatial Systems, which designed the new satellite's optics.
He tells people to imagine putting WorldView-3 in Los Angeles and then pointing it at San Francisco - a distance greater than 610km (380 miles).
"If we had that imaging system in the 'o' of the Hollywood Sign, we could count the number of people on the Golden Gate Bridge; we could count the number of cars and the colour of the cars - probably, the year and make of the cars, as well," he says.
At the core of WorldView-3 is a large telescope with a 1.1m primary mirror.
This directs the light to instrumentation which senses a total of 29 spectral bands.
A key innovation on WorldView-3 is its CAVIS instrument, which will monitor the state of the atmosphere.
This information will be used to correct pictures when the satellite views the Earth in more challenging conditions, such as when it is hazy or there are a lot of particulates (aerosols) in the sky.
"WorldView-3 by itself can collect 650,000 sq km [of imagery] a day, and if you add in our [existing] constellation - we'll be collecting four million sq km a day. That is almost half the size of the continental United States," says DigitalGlobe's Kumar Navulur.
"To get that kind of information to the ground, we've had to implement a much higher data rate - 1.2Gbps, which is much faster than wifi networks here on Earth," adds Alex Churnushin from Ball Aerospace, which has built all of DigitalGlobe's satellites.
The difficulty then is in processing all that data, and DigitalGlobe has developed an array of automated systems to prepare the various imagery products it now sells.
"When we have the data in the memory, we can actually do millions and trillions of operations very quickly," explains Dr Navulur.
"We're leveraging gaming technologies and the computing speeds with cloud computing to start extracting information."
DigitalGlobe operates at the pinnacle of the market.  There is no publicly available imagery that is sharper (some military systems are reputed to deliver 15-20cm resolutions).
Its main competitor in Europe is Airbus Defence and Space, which has a diverse range of satellite types and can capture 70cm imagery (re-sampled to 50cm) with its Pleiades optical constellation.
Then there is a raft of smaller operators with systems that generally work at 1m and above, with one or two now providing satellite video as well.
Today, the image data market is worth about $1.5bn a year.
Euroconsult expects this to climb to about $3.6bn by 2023.
Phil Davies, whose company Deimos just launched a 75cm-capable platform, said: "What's interesting is that the market seems to be separating - into very high performance systems, such as WorldView, which are largely serving a US government market; and then other operators who are coming in with much lower-cost systems where the resolution is not as good but you still meet a lot of the market requirements."

Output: The most powerful commercial imaging satellite ever built has just gone into orbit from California, US.


Input: Consider Input: It has certainly got him noticed, something which used to be a problem for the Liberal Democrats. He finds himself trending on twitter, along with a cheeky remix of the party political broadcast.
Although Mr Clegg has previously said that Liberal Democrats have nothing to apologise for, last year he did tell the leader of the Welsh Liberal Democrats: "I know I haven't always made your life easy, Kirsty, sorry about that."
In the same speech, Mr Clegg highlighted the possibility of St David's Day becoming a bank holiday in Wales.
The idea was launched in a UK government tourism strategy, which promised to consult the Welsh assembly on whether it should have the power to move the spring bank holiday from early May to March 1.
It was potentially good news for those parties which have campaigned for a St David's Day holiday, although David Jones, since promoted to David Cameron's cabinet, told MPs that it could have cross-border implications: "For that reason it is a matter that properly resides with this parliament".
So, eighteen months on, what's occurin'? Not much, by the look of it. The idea appears to have been quietly dropped.
I contacted the department for culture, media and sport to find out the latest state of play and was directed to a blog written some months ago by its former tourism minister.
John Penrose, for it was he, said: "We tested the water in a pretty general way, making it crystal clear that if there was no particular consensus - or a general feeling that the status quo was just fine, thank you very much - then that was what we'd go for."
Mr Penrose summed up the results of the "pre-consultation" like this:
"So no consensus. And - roll-of-drums - no change of bank holiday dates. And is this a victory for Merrie Englande lobbyists and a set-back for hoteliers; or is it a triumph for lawn-mower sellers and a defeat for punch-and-judy men? None of the above, really. More a case of doing what we said we'd do. Will there be headlines along the lines of MINISTER IN 'DOING WHAT PUBLIC WANT' SHOCKER? I rather doubt it."
Indeed, there were very few headlines at all. Mr Penrose was sacked in the reshuffle earlier this month but according to the DCMS when it comes to bank holidays the status quo remains.
Will Nick Clegg use his party conference to update voters on the policy or could there be another "sorry" on the way?

Output: Nick Clegg hopes his apology for that pledge on university tuition fees will help ensure the Liberal Democrats' work in government is not overshadowed by the breakdown in trust over broken promises.


Input: Consider Input: The club chairman has been in Scotland to meet new manager Pedro Caixinha.
"There is a level of understanding that this was a phased period that was going to happen over a couple of years," King told TalkSport.
"And I think, while this year we are behind where I thought we would be, our plan pretty much remains the same."
Rangers sit third in the Scottish Premiership in their first season since promotion, eight points behind Aberdeen and 33 adrift of Celtic as their Glasgow rivals close in on a sixth successive title.
Caixinha was appointed this month after the acrimonious departure of Mark Warburton, who has since taken over at Nottingham Forest.
"It was quite good to personally meet up with him and see that he lived up to the glowing report he received from the sub-committee that interviewed him," said King of the Portuguese.
In a wide-ranging interview, King also said there would be further investment in players, the club's dispute with retailer Sports Direct could be resolved this summer and they were considering court action in response to Warburton's departure.
"The resources available to Rangers are significantly above all other clubs by a factor of a couple of hundred per cent, other than Celtic," King pointed out.
While he was "realistic" enough to accept that Celtic would probably win a sixth title, "I expected Rangers to come midway between Celtic and Aberdeen if they came third, so it's very disappointing."
King believes recruiting Caixinha and further investing in the squad, which in part could be boosted by Europa League qualification and a better commercial agreement with retailer Sports Direct, will help Rangers catch their city rivals.
"While to some extent it is disappointing what has happened this season, we are certainly not letting the pressure of that change the long-term ambition, which is to get close and overtake Celtic within the reasonably foreseeable future and get back to being number one in Scotland," he said.
"And we are not going to do that by betting the bank on the way. We are still going to go ahead with a fairly methodical financial plan.
"Quite obviously, with the level of support the club have, with 50,000 supporters, with 44,000 season ticket sales, we already have that strong commercial base.
"What we are missing relative to Celtic is two key revenue streams - one where we had always been in Europe, we are now not in Europe, so at least that gap will start to be closed from next season when we'll at least be in the qualifiers.
"And the other important thing is Rangers had for a number of years the strongest retail operations in the UK and that has been completely lost with the present situation around the retail agreement."
Rangers have been in a dispute with Sports Direct that has led to a High Court action over a merchandise deal said to result in the Glasgow club receiving about seven pence of every pound spent.
The company owned by Mike Ashley, the Rangers shareholder and Newcastle United owner, says Rangers' board wrongly terminated a deal through which branded products, including kits, were sold, and want damages.
However, King is hoping for a compromise and said: "These discussions have continued, they are confidential, as they always have been, but I'm more optimistic than I was six months ago.
"We might get a resolution within a time frame that would allow us to have a proper kit launch ahead of next season."
Rangers are also in dispute with Warburton over events leading to his departure on 10 February, with the club saying he resigned and the Englishman disputing that claim.
Warburton and his management team took over at Forest on 14 March and King is considering pursuing compensation, having had to buy Caixinha out of his contract at Qatari club Al-Gharafa.
"If Mark and the guys wanted away, which I understand they did, it could have been done differently," said the Rangers chairman.
"My disappointment is that, if this was done the way you'd expect it to be done, I think we would, under normal circumstances, have expected some compensation if the management team left.
"When I was approached and asked if we would waive compensation, I said no we wouldn't - that's what contracts are for - but would be flexible on the payment terms.
"They have engineered, in my view, a relocation to Nottingham Forest."
Following Warburton's departure, Rangers decided they wanted to appoint a director of football as well as a team boss.
However, Southampton director of scouting and recruitment Ross Wilson rejected Rangers' offer, leaving the Ibrox still seeking a new director of football.
"I would imagine it will happen sooner rather than later, but it is not imminent," said King.
The appointment of a Scottish assistant, likely to be a former Rangers player, is closer to being chosen.
"My understanding is that he (Caixinha) has had a few interviews and he has another couple over the next few days.
"It is a decision that he's going to make and he is going to make alone. It is just based on who he feels comfortable with."
King took charge in March 2015 and says that he and other shareholders who backed him to become chairman will continue to put funds into the club.
Rangers International Football Club this week announced an operating profit of £300,000 for the first six months of the current financial year and said it was on its way to achieving "a sustainable business model" despite a pre-tax loss of £278,000.
"We are definitely going to invest more money in the club, including myself," added King. "That's a given and I think that will happen for another couple of years.
"We overinvested in Mark last year relative to what I thought and Pedro's got to come in and see what he feels he's got in that squad, and we'll have to give him the support accordingly.
"The interesting bit for us is over the next couple of months to see whether Pedro can get more out of the squad.
"Whether they can perform at a level that's probably more appropriate for the quality of players we do have at the club."


Output: Dave King says being forced to change managers will not alter Rangers' plan to catch and overtake Celtic "within the reasonably foreseeable future".


