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The announcement of the discovery Wednesday comes just a day after a team of European re- searchers said they found blocks of ice just under the surface of Mars near the equator. The Europeans said the ice, between 2 million and 5 million years old, could serve as storehouses for life. The new bacterium thrives under a microscope despite having been thawed from ice dating back some 32,000 years, to the Pleistocene era. Living bacteria are stained green.
Hoover said the creatures he has found might be able to survive in their suspended state for millions of years. The discovery opens up a whole new possibility that a future mission to Mars might be able to retrieve any life that's there. "Ice samples from this [Martian ice] sea could con-rain cryopreserved microorganisms if life ever flourished on the surface of Mars," Hoover said in a telephone interview. He is particularly excited about the instant revival qualities of the creatures found in Alaska. "You might actually get them growing in pure culture," he said of the potential Martian cousins. It would be a "wonderful way of retrieving intact, viable Martian organisms, if they are there."
Water does not guarantee life, but it is a crucial ingredient. Hoover said the Martian ice blocks are so near the surface that they might partly melt in summer, creating underground pools of water that would allow any microorganisms to grow and reproduce. (Life above ground is considered unlikely due to Mars' dry surface conditions and intense radiation. )
What does the discovery of deep-freeze bacteria mean to us, according to the passage？
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Why did it take the scientists a long time to locate the planets？
What happened one night？
之后，上级令甲公司售出写字楼，这期间写字楼市场价格未发生任何变化，设此时该写字楼的售价为户，在正常市场条件下，P最可能的取值为()万元。
In Britain, winter is the season not only for visits to the theatre, opera, concerts and ballet, but also for shopping or for sightseeing.
London, one of the【C1】______cities in the world, has plenty to offer during the winter months,【C2】______in the way of entertainment—and the【C3】______act like a magnet with【C4】______array of presents for the Christmas【C5】______, followed by large scale bargains in the January【C6】______. But it's not only London that【C7】______value shopping—most of our suburban and【C8】______centres have just as much to offer to the【C9】______shopper.
Even if you're based【C10】______London, you don't have to spend all your【C11】______there—and that goes for all the year【C12】______, too. Take a train or coach and【C13】______what else Britain has to offer;【C14】______are many excursions, even in winter, and among the great country houses【C15】______keep their stately front doors open【C16】______the year are Longleat and WoburnAbbey.【C17】______a car and drive【C18】______into the beauty of the winter landscape—the scenery will be【C19】______beautiful—and the people will have more time to chat to you【C20】______this time of year.
【C1】
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