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This is Scientific American 60-Second Space. I'm Clara Moskowitz. Got a minute?
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The ingredients for life on Earth may have gotten a start in space.
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Many biologically important molecules have been seen in space or found in meteorites.
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Now astronomers have discovered one of the largest and most complex organic molecules yet in a gaseous star-forming region of interstellar space.
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Most organic molecules seen in interstellar space, thanks to their spectra, are just straight chains of carbon atoms.
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The newfound molecule, isopropyl cyanide, on the other hand, has branching carbon chains.
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Such branches are needed for many molecules crucial to life, such as the amino acids that build proteins.
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Researchers found the isopropyl cyanide's chemical imprints in light from the Sagittarius B2 cloud about 27,000 light-years away.
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To reach the sensitivity needed to spot the faraway molecule, scientists used the connected web of 66 radio telescopes that make up the Atacama Large Millimeter/submillimeter Array, also known as ALMA, in Chile.
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They report their findings in the journal Science.
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The discovery supports the idea that life's building blocks may have originated in interstellar space.
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The molecules could have arisen during the process of early star formation, and been transferred to our planet later.
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Of course, that still doesn't explain the origin of life, or why it ultimately came up with that wacky cousin you have to see at Thanksgiving.
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Thanks for the minute, for Scientific American 60-Second Space. I'm Clara Moskowitz
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显示原文 =This is Scientific American 60-Second Space. I'm Clara Moskowitz. Got a minute?
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显示原文 =The ingredients for life on Earth may have gotten a start in space.
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显示原文 =Many biologically important molecules have been seen in space or found in meteorites.
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显示原文 =Now astronomers have discovered one of the largest and most complex organic molecules yet in a gaseous star-forming region of interstellar space.
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显示原文 =Most organic molecules seen in interstellar space, thanks to their spectra, are just straight chains of carbon atoms.
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显示原文 =The newfound molecule, isopropyl cyanide, on the other hand, has branching carbon chains.
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显示原文 =Such branches are needed for many molecules crucial to life, such as the amino acids that build proteins.
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8 / 14
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显示原文 =Researchers found the isopropyl cyanide's chemical imprints in light from the Sagittarius B2 cloud about 27,000 light-years away.
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9 / 14
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显示原文 =To reach the sensitivity needed to spot the faraway molecule, scientists used the connected web of 66 radio telescopes that make up the Atacama Large Millimeter/submillimeter Array, also known as ALMA, in Chile.
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10 / 14
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显示原文 =They report their findings in the journal Science.
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显示原文 =The discovery supports the idea that life's building blocks may have originated in interstellar space.
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12 / 14
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显示原文 =The molecules could have arisen during the process of early star formation, and been transferred to our planet later.
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显示原文 =Of course, that still doesn't explain the origin of life, or why it ultimately came up with that wacky cousin you have to see at Thanksgiving.
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显示原文 =Thanks for the minute, for Scientific American 60-Second Space. I'm Clara Moskowitz
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- 单句循环：关
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