Last Updated：2025/11/29
Sentence
天文学者たちが接近してくる岩や塵、水氷、凍結したガスから成る彗星を観測したとき、彼らは何百万キロにも及ぶガスと塵の尾を検出しました。
Quizzes for review
When astronomers observed the approaching dirty snowball, they detected tails of gas and dust stretching millions of kilometers.
See correct answer
When astronomers observed the approaching dirty snowball, they detected tails of gas and dust stretching millions of kilometers.
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