天文学家们将这种不可见物质称为暗物质。
由于暗物质不可见,天文学家们采取了间接途径来测知它的存在。
Because dark matter cannot be seen astronomers detected its presence through indirect evidence.
也因此,暗物质是不可见的。
神秘而不可见的物质维系着宇宙免于分崩离析,但它们到底是什么?
What exactly are the mysterious and invisible matters that keep the universe from falling apart?
神秘而不可见的物质维系着宇宙免于分崩离析,但它们到底是什么?
What exactly are the mysterious and invisible matters that keep the universe from falling apart?
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