instruction:
In this task, you will be shown a passage. You need to write a fill-in-the-gap question based on your understanding of the events that might be inferred from the passage. Your question should be answerable based on the passage and only have one correct answer. Show the gap in your question with a _ .
question:
Comet lander Philae may be sitting on an object teeming with alien microbial life, according to two leading astronomers. Distinct features of the comet 67P/Churyumov-Gerasimenko, such as its organic-rich black crust, are best explained by the presence of living organisms beneath an icy surface, they claim. The experts go as far as to suggest the comet is more hospitable to life than the Earth's polar regions. Rosetta, the European space craft orbiting the comet, is also said to have detected strange 'clusters' of organic material that look suspiciously like viral particles. But neither Rosetta nor its lander are equipped to search for direct evidence of life after a proposal to include this in the mission was allegedly laughed out of court.Leading space experts say comet may be capable of housing microbial lifeEven suggest comet is more hospitable to life than Earth's polar regionsCalculate that its distinct feature point to presence of living organismsProfessors plan to include life-detecting device on lander was laughed at
answer:
'Five hundred years ago it was a struggle to have people accept that the _ was not the centre of the universe.


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A Virginia widow is calling for justice after her two-year-old golden retriever died from heatstroke on Friday following what was supposed to be a routine grooming appointment at Petco. After Allison Marks dropped her dog Colby Jack off at a Chesterfield County Petco for the grooming session, she called the store because no-one contacted her to say the appointment was over. An employee told her to meet the Petco's assistant manager at an animal hospital and a veterinarian informed her that Colby had probably died of heat stroke when she arrived. The manager said Colby had been left in a heated drying cage by accident after the groomer departed to attend a graduation and forgot about the dog, according to Marks.Allison Marks dropped Colby Jack at Chesterfield County, Virginia, PetcoCalled store after no one alerted her about end of grooming appointmentMet store manager at animal hospital and was informed Colby was deadColby left in a heated drying cage by accident after the groomer departedMarks wants to press charges and said she will 'get justice for Colby'
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She posted on Facebook that her 'sweet baby' had been taken away 'too soon thanks to _'.


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(CNN) An ISIS massacre on the streets of Moscow? Bombs detonated by the same terror group in St. Petersburg? Such "huge terrorist acts" might have happened if Russian authorities hadn't detained seven alleged ISIS members, state media reported. The FSB -- Russia's security agency and the successor to the Soviet Union's KGB -- told state-run TASS news that the seven suspects were charged Wednesday for plotting terrorist attacks. They'd been detained February 7 in Yekaterinburg, Russia's fourth-largest city situated in the Sverdlovsk region in the Urals, according to a report by state-run Sputnik news citing the FSB. To date, Russia hasn't been hit by ISIS terror attacks on busy, civilian-filled areas like those in Paris, Tunis or Jakarta. But it has been a target, in part for the Kremlin's armed efforts against the Islamist extremist group in Syria.Agency: The suspects were from Russia, central Asian nations and led by someone who'd come from TurkeySearches of the suspects' houses turned up a bomb lab, guns, grenades and "extremist literature," state news saysISIS has threatened attacks in Russia, which is involved in a military campaign against the terror group in Syria
answer:

And in a five-minute video posted to ISIS-affiliated social media accounts (although not independently verified by CNN as authentic) in November, ISIS purportedly threatened to attack _ "very soon."


