Science
Humans have reached the second level of civilization in the universe
If someone asks, are humans alone in the universe? I believe that most people will give a negative answer. The scientific community also generally believes that in the vast universe, there should be a large number of intelligent civilizations, some of which may even be far ahead of our human civilization, to better describe the level of technology of intelligent civilizations in the universe, scientists also put forward the concept of "cosmic civilization level".
By Robert Jack3 years ago in Earth
Why the Earth is alive and well
According to our knowledge of known life, liquid water is an essential substance for life, in other words, if there is liquid water on a planet, there is a possibility of life, and that is why scientists always consider liquid water as the first condition when assessing the possibility of life on a planet.
By Robert Jack3 years ago in Earth
Our solar system has been invaded by another star
The Milky Way is a huge galaxy with hundreds of billions of stars, and the Sun is only one of them, not a particularly impressive star, which, together with many other stars in the galaxy, is orbiting around the center of the galaxy.
By Robert Jack3 years ago in Earth
Pluto is full of "diamonds"
Can you imagine a planet full of diamonds? In our daily life, diamonds are an absolute luxury. Of their scarcity and beauty, diamonds have become the object of everyone's desire. Whenever a couple gets married, they use a diamond ring as a token of their love to commemorate their relationship. But because of the high price, not everyone on earth can own a diamond.
By Karen Gillanah3 years ago in Earth
If all the Antarctic glaciers melt
Global warming is a thesis that is increasingly being confirmed. Since the beginning of the Industrial Revolution, human activities have had a majority impact on nature. Driven by the pursuit of economic profit, not only has biodiversity been greatly reduced, but also greenhouse gases have gradually increased, and even the ozone layer, which protects the earth from solar radiation, has been hollowed out.
By Karen Gillanah3 years ago in Earth
Coincidence or another hidden agenda?
The Moon is the closest planet to Earth and the brightest and most easily observable object in the Earth's night sky. Interestingly, because the Moon always faces the same way toward the Earth, for us humans living on Earth, we can always observe only one fixed side of the Moon.
By Robert Jack3 years ago in Earth
Looking back at the history of mankind
Looking back at the history of mankind, we can see that if there is a breakthrough in a particularly useful science and technology, human civilization will develop by leaps and bounds as a result. This was the case in the past, and the future should be the same, so the question arises, for modern mankind, which science and technology once a breakthrough, human civilization will be a quantum leap forward?
By Robert Jack3 years ago in Earth
The Arctic is silently "dying"
As a geographical region, one of the two poles of the Earth, the Arctic will "die" one day. It may sound unbelievable, but after 389 days of drifting in the Arctic, the sadness of the research vessel is certainly strong proof that the Arctic is indeed "dying" silently.
By Karen Gillanah3 years ago in Earth
Why are we having summer when the earth is far from the sun?
Every moment, the Earth is revolving around the Sun. Since the Earth has an elliptical orbit, the distance between the Earth and the Sun is not constant in the process of revolving around the Sun, sometimes the Earth is far away from the Sun, and sometimes it is closer to the Sun.
By Robert Jack3 years ago in Earth
