A young boy looking toward a soft sunset sky as daylight fades into evening.

Big question

为什么太阳会不见了？

Wèishénme tàiyáng huì bújiàn le?

Why does the sun go away?

太阳看起来像不见了，是因为地球在转，我们这一边慢慢转出了它的光。

Tàiyáng kàn qǐlái xiàng bújiàn le, shì yīnwèi dìqiú zài zhuàn, wǒmen zhè yìbiān mànmàn zhuàn chū le tā de guāng.

太阳一直都还在天上，只是地球会一直不停地转。当我们住的这一边转离太阳的时候，这里就会变暗，看起来像太阳去了别的地方。

Tàiyáng yìzhí dōu hái zài tiānshàng, zhǐshì dìqiú huì yìzhí bù tíng de zhuàn. Dāng wǒmen zhù de zhè yìbiān zhuàn lí tàiyáng de shíhou, zhèlǐ jiù huì biàn àn, kàn qǐlái xiàng tàiyáng qù le bié de dìfang.

你能想一想，太阳快要不见的时候，天空看起来是什么样吗？

Nǐ néng xiǎng yì xiǎng, tàiyáng kuàiyào bújiàn de shíhou, tiānkōng kàn qǐlái shì shénme yàng ma?

The sun seems to go away because Earth turns, and our side moves out of its light.

The sun is still there in the sky, but Earth keeps turning all the time. When our part of Earth turns away from the sun, it gets dark here and feels like the sun went somewhere else.

Can you think of what the sky looks like right before the sun seems to go away?