CNNのインスタグラム(cnn) - 4月18日 22時32分

For the first time ever, scientists have detected in space the helium hydride ion, known as HeH+ — long believed to be the first molecule to emerge after the Big Bang some 14 billion years ago. "The chemistry of the universe began with HeH+," says Rolf Güsten, one of the authors of the study detailing the findings in the journal Nature. "The lack of definitive evidence of its very existence in interstellar space has been a dilemma for astronomy for a long time."
(📸: NASA)

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