The earth is heating up, and ancient creatures appear in ancient glaciers. What impact will it bring? The earth is heating up, and ancient creatures appear in ancient glaciers. What impact will it bring?
If after hundreds of years, fossil energy is exhausted, what impact will human life have? If after hundreds of years, fossil energy is exhausted, what impact will human life have?
Why can’t you find an alien civilization? Scientists guess: it may be related to the big filter Why can’t you find an alien civilization? Scientists guess: it may be related to the big filter
Alien civilizations are low-level civilizations, and humans are the high-level civilizations of the universe? Alien civilizations are low-level civilizations, and humans are the high-level civilizations of the universe?
The speed cannot surpass the speed of light, and there is no communication between civilizations. What is the meaning of the existence of the universe? The speed cannot surpass the speed of light, and there is no communication between civilizations. What is the meaning of the existence of the universe?
How many galaxies are there in the universe? The data obtained by scientists through observation makes us desperate How many galaxies are there in the universe? The data obtained by scientists through observation makes us desperate
Are human beings the only intelligent life in the universe? The theory of evolution may be able to give the answer Are human beings the only intelligent life in the universe? The theory of evolution may be able to give the answer
How fast does the earth move in the universe? It can circle the Milky Way in about 230 million years How fast does the earth move in the universe? It can circle the Milky Way in about 230 million years
Does our universe really exist? The conjecture put forward by scientists makes people doubt life Does our universe really exist? The conjecture put forward by scientists makes people doubt life
What will you see if you leave the earth at the speed of light and return for a minute? What will you see if you leave the earth at the speed of light and return for a minute?