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Question
Observations in the X-ray portion of the spectrum are routinely done from the surface of the Earth.Answer
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Related questions
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If the inflation theory is correct, the geometry of the universe is flat and Euclidean.
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An extraterrestrial observer would pick up the strongest radio signals when
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In Drake's equation, which of the following is the closest estimate for the number of stars that are formed in the Milky Way Galaxy?
A) a star a day
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How long ago did multicellular life forms appear in the fossil record?
A) 4.5 billion years ago
B) 3.8 billion years ago
C) one billion years ago
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What important molecules of life did Miller and Urey brew up?
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Thanks to the far-flung Voyager and Pioneers, knowledge of our presence has now spread out over 30 light years.
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The water hole lies between 18 and 21 cm in wavelength in the radio spectrum.
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Earth-like planets have been observed outside our solar system orbiting in the habitable zone.