If human beings are the only intelligent civilization in the universe, should we continue to explore the universe or maintain the status quo? If human beings are the only intelligent civilization in the universe, should we continue to explore the universe or maintain the status quo?
The sun’s lifespan has 5 billion years left. Will human beings survive on the earth till that time? The sun’s lifespan has 5 billion years left. Will human beings survive on the earth till that time?
Hawking once warned: human beings should leave the earth as soon as possible. Why is this? Hawking once warned: human beings should leave the earth as soon as possible. Why is this?
1.2 million kilometers away, Tianwen No.1 took a group photo of Earth and Moon. We were silent when we saw it. 1.2 million kilometers away, Tianwen No.1 took a group photo of Earth and Moon. We were silent when we saw it.
If a disaster leaves the earth with only 1 man and 1 woman, how long will it take to return to 7.8 billion humans again? If a disaster leaves the earth with only 1 man and 1 woman, how long will it take to return to 7.8 billion humans again?
The discovery of an exoplanet once again brings new hope to mankind and may give birth to life The discovery of an exoplanet once again brings new hope to mankind and may give birth to life
Why did we not meet aliens? Scientists give us six conjectures that make us feel scared Why did we not meet aliens? Scientists give us six conjectures that make us feel scared
If the human body shrinks to one-tenth of its original size, can it still dominate the earth? If the human body shrinks to one-tenth of its original size, can it still dominate the earth?
Mars may have been an ocean planet 4 billion years ago, but now it has become a desert planet. Why? Mars may have been an ocean planet 4 billion years ago, but now it has become a desert planet. Why?
If Mars does not become a desert planet, and the Martian civilization is born, can it live in peace with humans? If Mars does not become a desert planet, and the Martian civilization is born, can it live in peace with humans?