comet-deep Astronomy

4 个科学问题 · 天文 Astronomy

本页目录

奥陌陌(Oumuamua)为何引发热议?

Why did Oumuamua stir so much debate?

它是首个被确认的星际天体,形状细长、缺少彗星气体尾,且出现非引力加速,有人猜测是氢冰或光帆,但更朴素解释是释气;其起源仍是谜。
It was the first confirmed interstellar object—elongated, with no gas tail, and showing non-gravitational acceleration. Some speculated hydrogen ice or a light sail, but outgassing is the simpler explanation; its origin remains mysterious.
难度 进阶 · 适合 高中(15-18) 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

#奥陌陌 #星际天体 #非引力加速

鲍里索夫(Borisov)与奥陌陌有何不同?

How did Borisov differ from Oumuamua?

鲍里索夫是典型的星际彗星,有明显的彗发和气体活动,成分类似太阳系彗星;它证明星际空间中存在活跃天体,而奥陌陌更像无气体的岩石碎块。
Borisov was a typical interstellar comet with a clear coma and gas activity, much like Solar System comets; it proved active objects roam interstellar space, whereas Oumuamua looked like a gas-free rock.
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

#鲍里索夫 #星际彗星 #彗发

彗星中发现了哪些与生命相关的物质?

What life-related materials have been found in comets?

彗星含水和多种有机分子(如氨基酸前体、甲醛),被视为地球早期水和有机物的可能输送者,支持了“生命原料天降”假说。
Comets carry water and many organic molecules (amino-acid precursors, formaldehyde) and are seen as possible deliverers of Earth's early water and organics, supporting the 'life ingredients from space' idea.
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

#彗星 #有机物 #地球水源

罗塞塔号探测器对彗星做了什么?

What did the Rosetta probe do to a comet?

欧空局的罗塞塔号于2014年环绕并登陆67P彗星,第一次在彗星旁仔细分析它的气体和尘埃,发现里面有复杂有机物和水冰。
ESA's Rosetta orbited and landed on comet 67P in 2014, analyzing its gas and dust up close for the first time and finding complex organics and water ice.
难度 入门 · 适合 幼儿(3-6) 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

#罗塞塔 #67P #有机物