zài在guò过qù去，kē科xué学jiā家shū叔shū叔fā发shè射wán完huǒ火jiàn箭hòu后，huǒ火jiàn箭de的shēn身tǐ体yòng用wán完jiù就huì会zhí直jiē接diào掉jìn进wāng汪yáng洋dà大hǎi海huò或zhě者zài在dà大qì气céng层lǐ里shāo烧huǐ毁，zhè这shí实zài在shì是tài太làng浪fèi费、tài太kě可xī惜la啦！bù不guò过xiàn现zài在kē科jì技biàn变dé得chāo超jí级lì厉hài害，fā发míng明le了shén神qí奇de的“kě可huí回shōu收huǒ火jiàn箭”！zhè这zhǒng种cōng聪míng明de的huǒ火jiàn箭bǎ把wèi卫xīng星sòng送dào到tài太kōng空hòu后，dì第yī一jí级huǒ火jiàn箭jū居rán然kě可yǐ以zì自jǐ己diào调zhuǎn转chē车tóu头，xiàng像zhǎng长le了yǎn眼jīng睛yī一yàng样，wěn稳wěn稳dāng当dāng当dì地jiàng降luò落zài在hǎi海shàng上de的zhuān专yòng用fú浮dòng动píng平tái台huò或zhě者dì地miàn面de的fā发shè射chǎng场shàng上。kē科xué学jiā家bǎ把tā它men们cā擦xǐ洗gàn干jìng净、jiā加mǎn满rán燃liào料，xiū修zhěng整hǎo好yǐ以hòu后hái还néng能zài再fēi飞shàng上tài太kōng空。zhè这jiù就xiàng像dà大kè客jī机jiàng降luò落jī机chǎng场、xià下cì次hái还néng能zài载kè客yī一yàng样。xiǎo小xióng熊māo猫xīng兴fèn奋dì地xiǎng想：wèi未lái来yīn因wèi为yǒu有le了zhè这zhǒng种shěng省qián钱de的huǒ火jiàn箭，gèng更duō多pǔ普tōng通rén人dōu都yǒu有jī机huì会qù去shén神mì秘de的tài太kōng空lǚ旅xíng行la啦！

In the past, after scientists launched a rocket, the rocket's body would fall straight into the vast ocean or burn up in the atmosphere once its job was done, which was such a huge waste! But now, technology has become super amazing and invented the fantastic 'reusable rockets'! After carrying satellites to space, the first stage of these clever rockets can actually turn itself around and, as if it had eyes, land steadily back on a special floating platform at sea or on a landing pad on the ground. Scientists wash them clean, fill them with fuel, and after a little tune-up, they can fly into space again! This is just like a big airplane landing at an airport so it can carry passengers next time. Little Panda thinks excitedly: In the future, thanks to these cost-saving rockets, more regular people will have a chance to travel into mysterious space!

👧 Compare With You

你抬头看天空的方式，和今天学的太空知识有什么联系？ How does looking at the sky connect to today's space fact?

📚 Vocabulary

💬 Learn Sentences

🎯 Fun Challenge

可回收火箭的第一级完成任务后会怎么样？

What happens to a reusable rocket's first stage after its job is done?

💡 想一想刚才读到的内容。 Think about what you just read.