A young boy lying on the grass as the first stars begin to appear in a darkening evening sky.

Big question

为什么星星会在晚上出来？

Wèishénme xīngxing huì zài wǎnshang chūlái?

Why do stars come out at night?

星星看起来像是在晚上才出来，是因为天变暗了，我们就更容易看见它们的光。

Xīngxing kàn qǐlái xiàng shì zài wǎnshang cái chūlái, shì yīnwèi tiān biàn àn le, wǒmen jiù gèng róngyì kànjiàn tāmen de guāng.

白天的时候，星星其实也还在天上，只是太阳光太亮了，我们很难看见它们。等地球转到晚上，天空变暗了，那些远远的小星光就慢慢出现了。

Báitiān de shíhou, xīngxing qíshí yě hái zài tiānshàng, zhǐshì tàiyángguāng tài liàng le, wǒmen hěn nán kànjiàn tāmen. Děng dìqiú zhuàn dào wǎnshang, tiānkōng biàn àn le, nàxiē yuǎnyuǎn de xiǎo xīngguāng jiù mànmàn chūxiàn le.

如果你今晚抬头看天，你觉得自己的眼睛会先找到哪一颗星星呢？

Rúguǒ nǐ jīnwǎn táitóu kàn tiān, nǐ juéde zìjǐ de yǎnjing huì xiān zhǎodào nǎ yì kē xīngxing ne?

Stars seem to come out at night because the sky gets dark enough for us to see their light.

The stars are still in the sky during the day, but sunlight is so bright that we cannot see most of them. When our part of Earth turns into nighttime, the sky gets darker and their tiny faraway lights begin to show.

If you looked up tonight, which star do you think your eyes would find first?