Why do people think that aliens are better than humans? Determined by the distance of the universe Why do people think that aliens are better than humans? Determined by the distance of the universe
Why did the alien civilization not come to visit the earth? Scientists say: the cost of visiting the earth is too high Why did the alien civilization not come to visit the earth? Scientists say: the cost of visiting the earth is too high
Alien civilizations may have already observed the earth, but the cosmic distance is exaggerated, and they cannot touch each other. Alien civilizations may have already observed the earth, but the cosmic distance is exaggerated, and they cannot touch each other.
Scientists say: Alien civilizations may have been to the earth in 2017, has the earth been exposed? Scientists say: Alien civilizations may have been to the earth in 2017, has the earth been exposed?
Humans may be the “prisoners” of alien civilization exiled to the earth, and the moon is a monitor? Humans may be the “prisoners” of alien civilization exiled to the earth, and the moon is a monitor?
Why do people think that aliens are better than humans? Determined by the distance of the universe Why do people think that aliens are better than humans? Determined by the distance of the universe
The neighboring galaxy 4 light-years away, there may be living planets in the habitable zone, humans should be careful The neighboring galaxy 4 light-years away, there may be living planets in the habitable zone, humans should be careful
There is still a lot of water hidden in the crust of Mars? NASA found another, or overturned previous inferences There is still a lot of water hidden in the crust of Mars? NASA found another, or overturned previous inferences
Scientists speculate that the ninth planet of the solar system may not be a planet at all but a primordial black hole Scientists speculate that the ninth planet of the solar system may not be a planet at all but a primordial black hole
An ancient star may be about 14 billion years old, which is older than the age of the universe An ancient star may be about 14 billion years old, which is older than the age of the universe