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15 Cards in this Set
- Front
- Back
Humans desire to explore and learn can sometimes be very dangerous, which is exemplified by the destruction of the Space Shuttles __________ and ________
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Columbia, Challenger
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The basis of life on Earth is in the form of the element _________ and as this element is abundant throughout the Universe it also may serve as the basis of life on other planets.
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carbon
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In order for life to exist, it requires a narrow range of environmental conditions, including pH, pressure, energy, and _________.
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temperature
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The inhospitable caves known as Caeva De Willa Luiz in Mexico are home to bacteria which form large colonies that drip from the ceilings. These colonies are called _________.
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snottities
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Lake Vostok is a large body of water which is located about 4,000 m below the ___________ ice sheets and contains abundant life which can tolerate the extreme cold.
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Antarctic
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Bacteria live 3.5 km underground within the Earth’s crust and gain their energy from _______ gas.
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methane
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In a recent poll of scientists at a European Space Agency conference found that _______ of them believe that life once existed on Mars and ______ believe it supports life today.
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75%, 25%
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________, a moon of Jupiter, is hypothesized to have a liquid ocean capable of supporting life under its thick ice caps
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Europa
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SETI was the first scientific organization to look for evidence of ______________
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Extraterrestrial Intelligence
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The equation formulated in the 1960’s to estimate the possible number of intelligent civilizations in the Milky Way Galaxy is called the _______ equation
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Drake
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Although it is currently impossible to see distant planets around other stars using telescopes, we can detect them because the planets exert a gravitational pull on the stars that they orbit. This pull causes the star to _________.
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wobble
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________ telescopes were the first type of telescopes employed to look for the signals of communication from distant civilizations.
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radio
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The ________ space crafts were both launched in the 1970’s to explore our solar system, but although they have been traveling for more than 30 years, it would take another ________ years at the speed of light for them to reach the next closest star.
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Voyager, 80,000
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Some scientists believe that intelligent life may not exist in the Milky Way Galaxy because of the probability of ___________ for a technologically advanced civilizations is rather high.
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self-annihilation
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One argument for the presence of intelligent life elsewhere in our galaxy assumes that because _________ evolved, the conditions of the universe must be suitable for intelligent life to evolve elsewhere.
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humans
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