In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Q: Article: Who Owns the Moon? Within the next ten years, the U. S., China, Israel, and a crowd of private companies plan to set up camp on the moon. So if and when they plant a flag, does _ give them property rights? A NASA working group hosted a discussion this week to ask: Who owns the moon? The answer, of course, is no use. The Outer Space Treaty, the international signed by more than 100 countries, states that the moon and other celestial bodies are the province of all mankind. No doubt that would annoy all of the people throughout the ages, like monks from the Middle Ages, who have tried to claim the moon was theirs. But ownership is different from property rights. People who rent apartments, for example, don't own where they live, but they still hold rights. So with all of the upcoming missions to visit the moon and beyond, space industry thought leaders are seriously asking themselves how to deal with a potential land rush. " This is a very relevant discussion right now. We've got this wave of new lunar missions from around the world," said William Marshall, a scientist in the small-spacecraft office at NASA, but who spoke this week at an event hosted by NASA's Co Lab, a collaborative public-private working group. He was speaking from his personal interest and not on behalf of the agency. To be sure, the United States aims to send astronauts back to the moon by as early as 2015, in a mission that would include a long-term settlement. China and Israel, among others, are also working on lunar projects. And for the first time, several private groups are building spacecraft to land on the moon in an attempt to win millions of dollars in the Google Lunar X Prize. Some participants say that they plan to gain some property rights in the mission.
Answer: no one can answer the question " Who owns the moon?"

A: In the passage the writer seems to be worrying that _ .
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Q: Article: Older fathers have uglier children, researchers have claimed after linking age to genetic mutations . The finding comes weeks after leading scientists reported children born to men over the age of 45 run a higher risk of having autism and mental disorders. With age, sperm -producing cells do not copy a man's DNA as effectively, leading to genetic mutations. Martin Fielder, an anthropologist at Vienna University, told the Sunday Times: 'Every 16 years the mutation rate doubles. Other researchers found 25 mutations per sperm in a 20-year-old, but at age 40 it is 65 mutations. By 56, it doubles again. The effect is very visible - someone born to a father of 22 is already 5-10 per cent more attractive than those with a 40-year-old father and the difference grows with the age gap. In contrast, women pass on a maximum of 15 mutations to their baby, regardless of age, according to the study published in the journal Nature. Surveying a group of six men and six women, researchers showed them each 4,018 photographs of 18-20-year-old men and 4,416 of women the same age, and asked to assess their attractiveness. Those with older fathers were consistently considered less attractive. However, the children of older men, though less attractive, are likely to outlive their peers with younger fathers, it is claimed. Professor Lee Smith, a geneticist at Edinburgh University, told the Sunday Times other research found such children have longer telomeres - the caps on the end of chromosomes --- which are associated with longer life. But the mounting research connecting parents' age with autism is cause for concern, experts warn. Autism is an umbrella term for a range of developmental disorders that have a lifelong effect on someone's ability to interact socially and communicate openly. In the UK, around one in 100 adults is thought to be affected by autism, mostly men, caused by a combination of genetic and environmental factors. Researchers said men should be advised about the potential problems in order to help their personal decision-making when it came to having fathering children at older ages. They warned that advancing paternal age faced a risk of 'numerous public health and societal problems'. Among well-known older dads are Simon Cowell, 54, whose son was born earlier this month, and comedian Frank Skinner whose first child was born in 2012 when he was 55.
Answer: When a man becomes older, sperm-producing cells copy his DNA less effectively

A: From the passage, we know that _ .
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Q: Article: Do you want to see the effects of global warming? Then head north.Will Steger is going to take all of us there. Steger,64, the first person to make a dogsled trip to the Noah Pole,is a very famous and admired polar explorer.He's at home in frozen parts of the world where few humans ever step on.Steger is also a devoted environmentalist who was early to ring the alarm bell on global warming.He saw its effects firsthand in frequent polar expeditions to the Arctic and Antarctica. Steger is about to lead a team of six young adventurers on a 1,400-mile,60-day-long dogsled trip across Ellesmere Island, in the Canadian Arctic.The sea ice in that region should still be frozen."We want to take our audience to the front lines of global warming,"says Steger. The team will be uploading videos,stories and photos to the website global-warming 101.com as they march along,allowing armchair adventurers and kids in classrooms to follow their progress day to day."We can actually bring the audience up there,"Steger says. Stege's team will include some already-famous young explorers.Sam Branson, the22-year-old son of British airline tycoon Richard Branson,is an experienced Arctic traveler.Also on the journey will be 27-year-old Norwegian Sigrid Ekran.Last year,Ekran became only the second woman in history to win Rookie of the Year for the Iditarod Sled Dog Race. What they will see may be surprising.Even Steger doesn't know exactly what to expect.Climate change has already reshaped the geography of the Arctic."Within a decade or less, it's going to be impossible to reach the North Pole by dog team,without flotation ,"says Steger. Climate change is happening,but people can change too.Their willingness to change will determine the shape of Earth's future.
Answer: a famous British airline tycoon

A:
Steger is the following except_.
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