来就得意
发表于 2025-3-23 12:33:08
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溺爱
发表于 2025-3-23 15:21:49
Advanced Civilizations and Time Travel,izations somewhere out there are using them right now Do we have any evidence that this is the case? Unfortunately, we don’t; we can only speculate, but careful scientifically guided speculation is often useful.
Inclement
发表于 2025-3-23 18:19:35
Working-Class Writing and Experimentationjects known as white dwarfs. For many years white dwarfs were the exotic objects of astronomy: tiny, bright stars, hardly bigger than Earth, yet so dense that a teaspoon of material from them weighed tons.
Conjuction
发表于 2025-3-24 01:00:39
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可卡
发表于 2025-3-24 06:10:19
Working-Class Writing and Experimentationt from background stars and would appear as a black sphere. But from Earth we wouldn’t be able to see this sphere. The nearest black hole is probably light years away, and even with our largest telescopes we couldn’t see anything that small.
背书
发表于 2025-3-24 09:59:49
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ostensible
发表于 2025-3-24 10:44:29
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osteocytes
发表于 2025-3-24 15:53:02
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headway
发表于 2025-3-24 19:05:29
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含沙射影
发表于 2025-3-25 01:23:06
Searching for Time Tunnels,t from background stars and would appear as a black sphere. But from Earth we wouldn’t be able to see this sphere. The nearest black hole is probably light years away, and even with our largest telescopes we couldn’t see anything that small.