How long does humanity need to work hard to become a first-class civilization? How long does humanity need to work hard to become a first-class civilization?
There are three unusual places in the solar system. Scientists speculate that they may be related to mysterious powers. There are three unusual places in the solar system. Scientists speculate that they may be related to mysterious powers.
Did the things in the dream really happen? Scientists have proposed three conjectures about dreams Did the things in the dream really happen? Scientists have proposed three conjectures about dreams
At 17.8 billion kilometers, Voyager 2 encountered a “wall of fire” of tens of thousands of degrees. Can it traverse the past? At 17.8 billion kilometers, Voyager 2 encountered a “wall of fire” of tens of thousands of degrees. Can it traverse the past?
How do humans build a simple Dyson ball? Scientist: Just remove Mercury How do humans build a simple Dyson ball? Scientist: Just remove Mercury
The eliminated bones reappear, and humans begin to degenerate? The eliminated bones reappear, and humans begin to degenerate?
If a supernova explosion occurs 4 light-years away, what will the fate of the earth and mankind be? If a supernova explosion occurs 4 light-years away, what will the fate of the earth and mankind be?
The universe may be a “holographic projection”, and quantum entanglement provides us with a direction for thinking The universe may be a “holographic projection”, and quantum entanglement provides us with a direction for thinking
Why did human ancestors not want to tame flying animals as mounts? Why did human ancestors not want to tame flying animals as mounts?