change Astronomy

3 个科学问题 · 天文 Astronomy

本页目录

嫦娥四号登陆月球背面为什么需要“鹊桥”中继星?

Why did Chang'e 4 need the Queqiao relay satellite to land on the far side?

月球背面永远背对地球,无法直接通信,鹊桥中继星停在地月拉格朗日点,把信号转发回地球。
The far side never faces Earth, so the Queqiao relay satellite at a Lagrange point bounces signals between the lander and Earth.
难度 专业 · 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:嫦娥工程探月任务(2022)

SCIO white paper 'China's Space Program: A 2021 Perspective': Change lunar missions, 2022

#鹊桥 #中继通信

嫦娥五号做了什么特别的事?

What was special about Chang'e 5?

它在2020年从月球采集约1.7公斤月壤并成功带回地球,是人类时隔四十多年再次取回月球样品。
In 2020 it collected ~1.7 kg of lunar soil and returned it—the first Moon sample brought back in over four decades.
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

#嫦娥五号 #月壤返回

嫦娥工程是什么?

What is the Chang'e program?

嫦娥是中国探月工程的系列任务,用绕月、落月、采样返回等方式一步步探测月球。
The Chang'e program is China's lunar exploration series, stepping through orbiting, landing, and sample return.
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》航天白皮书,2022

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

#嫦娥 #探月