china-modern Astronomy

12 个科学问题 · 天文 Astronomy

本页目录

为什么中国空间站叫'天宫',它和探月探火怎样配合?

Why is China's space station called 'Tiangong,' and how does it coordinate with lunar and Mars missions?

'天宫'取天上宫殿之意,是长期有人驻留的科研平台;它可验证长期驻留、再生生保等关键技术,为未来载人登月与深空探测打基础。
'Tiangong' means heavenly palace—a long-term crewed lab; it tests life-support and long-stay tech that future crewed lunar and deep-space missions will need.
难度 专业 · 适合 高中(15-18) CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source

国务院新闻办公室《2021中国的航天》航天白皮书,2022

State Council Information Office: China's Space Program: A 2021 Perspective, white paper, 2022

#天宫 #空间站

北斗的'短报文'通信功能是做什么的,为什么多数国外导航系统没有?

What does Beidou's short-message communication function do, and why do most foreign navigation systems lack it?

北斗卫星能收发简短文字报文,让没有手机信号的海上、野外用户也能求救和联络;这需要卫星具备双向通信能力,增加了系统复杂度。
Beidou satellites can send and receive short text messages, letting users at sea or in the wild call for help without cell service; it requires two-way communication capability, adding system complexity.
难度 专业 · 适合 高中(15-18) CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source

国务院新闻办公室《2021中国的航天》白皮书:北斗短报文通信特色(2022)

SCIO white paper 'China's Space Program: A 2021 Perspective': BeiDou short-message service, 2022

#北斗 #短报文

为什么火星着陆比月球着陆更难?

Why is landing on Mars harder than on the Moon?

火星有稀薄大气需防热和降落伞减速,但大气又太薄无法轻柔着陆;加上地火通信延迟达十几分钟,无法实时操控,必须自动完成'恐怖七分钟'。
Mars has thin air needing heat shields and parachutes yet too thin for a soft landing; with 10+ minute light-delay, landing cannot be remote-controlled and must be fully automatic—the 'seven minutes of terror.'
难度 专业 · 适合 高中(15-18) CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source

出处备注:本题原挂出处与答案内容不符,已撤回;具体书目待补,暂不展示来源。

本题原挂出处与答案内容不符,已撤回;具体书目待补。

Previous citation withdrawn as unsupported for this answer; a specific source is pending.

#火星着陆 #天问

羲和号、夸父号太阳探测卫星是观测什么的?

What do the Xihe and Kuafu solar observatories observe?

羲和号从特殊轨道观测太阳大气的磁场与速度,夸父号巡测太阳爆发和日地空间天气,二者共同守护地球的'空间环境'安全。
Xihe observes solar atmospheric magnetic fields and flows from a special orbit, while Kuafu monitors solar eruptions and space weather—together guarding Earth's space environment.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source

出处备注:本题原挂出处与答案内容不符,已撤回;具体书目待补,暂不展示来源。

本题原挂出处与答案内容不符,已撤回;具体书目待补。

Previous citation withdrawn as unsupported for this answer; a specific source is pending.

#羲和号 #太阳探测

为什么嫦娥五号要去月球'挖土'采样?

Why did Chang'e-5 go to the Moon to collect soil samples?

月球样品能帮助测定月球年龄、火山活动历史,并验证'月球晚期重轰炸'等关键假说,是仅靠遥感无法获得的直接证据。
Lunar samples reveal the Moon's age, volcanic history and test key ideas like the Late Heavy Bombardment—direct evidence remote sensing alone cannot provide.
难度 进阶 · 适合 大众 CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source

国务院新闻办公室《2021中国的航天》白皮书:嫦娥工程月球采样返回(2022)

SCIO white paper 'China's Space Program: A 2021 Perspective': Change-5 sample return, 2022

#嫦娥五号 #月壤

为什么探月探火都要算'发射窗口'?

Why must lunar and Mars missions time their 'launch windows'?

地球、月球和火星位置不断变化,只有在特定几天出发,才能用最省燃料的轨道相遇;错过就要再等几个月甚至两年。
As Earth, Moon and Mars move, only on certain days can you take the most fuel-efficient path to meet them; miss it and you wait months or even two years.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

苏宜,《天文学新概论》第5版,科学出版社

Su Yi, Introduction to Astronomy, 5th ed., Science Press

#发射窗口 #轨道力学

中国'巡天'空间望远镜和哈勃有什么不同?

How does China's Xuntian space telescope differ from Hubble?

巡天望远镜视场比哈勃大300多倍,擅长对大范围天区快速拍照普查,并可与天宫空间站共轨、方便维护升级,而哈勃视场较窄、专注深场精测。
Xuntian has a field of view over 300 times wider than Hubble's, suited to fast wide-area surveys, and shares orbit with the Tiangong station for easy servicing; Hubble has a narrow field for deep precise imaging.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source

国务院新闻办公室《2021中国的航天》航天白皮书,2022

State Council Information Office: China's Space Program: A 2021 Perspective, white paper, 2022

#巡天 #空间望远镜

FAST'中国天眼'为什么建在贵州的山窝里?

Why was China's FAST radio telescope built in a mountain bowl in Guizhou?

贵州的喀斯特洼地天然像个巨碗,能托住500米口径的反射面,且当地人烟稀少、电磁干扰低,适合接收极其微弱的宇宙无线电信号。
Guizhou's karst depression naturally cradles the 500-meter dish, and its sparse population gives low radio interference—ideal for catching faint cosmic radio signals.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

苏宜,《天文学新概论》第5版,科学出版社

Su Yi, Introduction to Astronomy, 5th ed., Science Press

#中国天眼 #射电望远镜

北斗卫星导航系统怎么知道你在哪里?

How does the Beidou system know where you are?

北斗由多颗卫星不停播发带精确时间戳的信号,接收机测出几颗卫星信号的到达时间差,用三角定位算出经纬度与高度。
Beidou satellites broadcast signals with precise timestamps; a receiver measures arrival-time differences from several satellites and triangulates your latitude, longitude and altitude.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source

国务院新闻办公室《2021中国的航天》白皮书:北斗卫星导航定位原理(2022)

SCIO white paper 'China's Space Program: A 2021 Perspective': BeiDou positioning principle, 2022

#北斗 #定位

火箭为什么能飞上天?

Why can a rocket fly into the sky?

火箭向下喷出高速气体,气体反过来把火箭往上推(作用力与反作用力),只要推力大于重力就能不断加速升空。
A rocket blasts gas downward, and the gas pushes the rocket upward (action and reaction); when thrust beats gravity it keeps accelerating upward.
难度 入门 · 适合 小学低段(6-8) CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source

国务院新闻办公室《2021中国的航天》白皮书:中国长征运载火箭发展(2022)

SCIO white paper 'China's Space Program: A 2021 Perspective': Long March launch vehicles, 2022

#火箭 #反作用力

'悟空'号暗物质粒子探测卫星是找什么的?

What is the Wukong dark-matter satellite searching for?

悟空号在太空中精确测量高能电子和伽马射线能谱,试图捕捉暗物质粒子湮灭或衰变产生的异常信号,因为暗物质不发光却占宇宙质量大部分。
Wukong precisely measures high-energy electron and gamma-ray spectra in space to catch anomalies from dark-matter annihilation or decay; dark matter is invisible yet dominates cosmic mass.
难度 入门 · 适合 大众 CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

苏宜,《天文学新概论》第5版,科学出版社

Su Yi, Introduction to Astronomy, 5th ed., Science Press

#悟空 #暗物质

天问一号去火星做了什么?

What did Tianwen-1 do at Mars?

天问一号一次任务实现'绕、着、巡':环绕火星、祝融号火星车着陆乌托邦平原并巡视探测,使中国成为第二个成功着陆火星的国家。
Tianwen-1 accomplished orbiting, landing and roving in one mission: its Zhurong rover touched down on Utopia Planitia, making China the second nation to land on Mars.
难度 入门 · 适合 小学低段(6-8) CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source

国务院新闻办公室《2021中国的航天》白皮书:天问一号行星探测(2022)

SCIO white paper 'China's Space Program: A 2021 Perspective': Tianwen-1 Mars mission, 2022

#天问 #祝融号