Why are scientists so enthusiastic about searching for alien civilizations? Why are scientists so enthusiastic about searching for alien civilizations?
If aliens exist, will they breathe oxygen? Scientists guess it might be hydrogen If aliens exist, will they breathe oxygen? Scientists guess it might be hydrogen
China’s celestial eye starts a search for alien civilizations, looking for signals from the depths of the universe. Will there be discoveries? China’s celestial eye starts a search for alien civilizations, looking for signals from the depths of the universe. Will there be discoveries?
Flying 18.8 billion kilometers, Voyager 2 sent back two words to the earth: Hello, what happened? Flying 18.8 billion kilometers, Voyager 2 sent back two words to the earth: Hello, what happened?
A special star has too much rare earth metal elements, maybe the alien civilization is taking out the garbage A special star has too much rare earth metal elements, maybe the alien civilization is taking out the garbage
Is it a good thing for humans to take the initiative to expose themselves and attract the attention of alien civilizations? Is it a good thing for humans to take the initiative to expose themselves and attract the attention of alien civilizations?