Alien hunters update guidance on sharing news of possible intelligent life
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Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
To discover something by chance or unexpectedly.
A rotating circumstellar disk of dense gas and dust surrounding a young newly formed star.
Based on or firmly established on something.
Something that is certain to happen at some point in the future.