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The discovery of a possible sign of life in Venus’ clouds sparked controversy. Now, scientists say they have more proof


Researchers’ detection of two gases, phosphine and ammonia, in the clouds of Venus raises speculation about possible life forms in the planet’s atmosphere.

Four years ago, the unexpected discovery in the clouds of Venus of a gas that on Earth signifies life — phosphine — faced controversy, earning rebukes in subsequent observations that failed to match its findings. Presented at the talks in Hull by Jane Greaves, a professor of astronomy at Cardiff University in the United Kingdom, the findings will be the basis for a separate scientific paper, using data from the Green Bank Telescope in West Virginia. Scientists’ current understanding of the atmospheric chemistry of Venus cannot explain the presence of phosphine, said Dr. Kate Pattle, a lecturer in the department of physics and astronomy at University College London.

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