Tang Ping Astronomical Center, emergency alert has been issued.
The Rosetta comet probe, which was deployed above Mars 'orbit, sent back satellite photos that showed a behemoth that humans could not imagine was slowly descending in a vertical spiral motion about 18,000 kilometers above Mars' orbit.
"Oh my god!"
The president covered his mouth with his hand.
The assistant at the side looked at the big screen in a daze and muttered,"Could it be that the Drake Formula was verified today?”
The president of the Pingtang Astronomical Center, Mr. Chris, the famous astronomer, naturally knew about the famous Drake formula in physics.
This was the answer to the more famous " Fermi Parabola " from more than a hundred years ago.
The year 1951 on Earth was still the era of nations.
One day, when Nobel Prize winner and physicist Fermi was discussing UFO and aliens with others, he suddenly said,""Where are they?"
This seemingly simple question was known as the Fermi Parabola.
The implication of the Fermi Paragon was that, theoretically speaking, humans could fly to various planets in the Milky Way in a million years. Then, aliens should have arrived on Earth as long as they evolved a million years earlier than humans.
In other words, Fermi's Parabola showed that this was the case.
A. Aliens do exist-scientific inference can prove that aliens evolved much earlier than humans, and they should have already arrived on Earth and existed somewhere.
B. B. Aliens do not exist-so far, no trace of their existence has been found.
The contradiction between A and B represented the contradiction between the overestimation of extraterrestrial civilization and the lack of relevant evidence.
Later, the mathematician Frank Drake proposed two equations, which were called the Drake formula.
1 is:N= Ang ×Fp×Ne×Fl×Fi×FC× TL [2]
Formula 2 is:N=R*×Fp×Ne×Fl×Fi×FC×L
Among them:
N represents the number of civilizations in the galaxy that may communicate with us
Number of stars in the Milky Way
The proportion of planets in a planet
The number of terrestrial planets in each planetary system
Fl. proportion of habitable planets with life evolution
The probability of fi evolving into a highly intelligent creature
FC The probability of intelligent life being able to communicate
fL The ratio of the duration of a technological civilization to the life cycle of a planet
The difference between Formula 2 and Formula 1 was that R* was used instead of NG, and L was used instead of fL.
R* is the average rate of star formation in the Milky Way
L is the lifespan of technological civilization
The Drake equation was seen as the first formal theoretical response to Fermi's Paragon. According to the calculation of the Drake equation, the number of planets with extraterrestrial intelligent life should be around 1 million.
And we can only come into contact with one alien life at any time.
Could it be that today, the only alien technology that theoretically existed that could make contact with Earth's civilization appeared?
What kind of changes would his appearance bring to Earth?
This was the question in the minds of all astrophysicists.
All the centers on Earth that could observe outer space sounded the highest level of alarm at the same time.
The government officials of the Earth Federation rushed to the space center.
........
Galaxy.
Tomcat and Zhao Xiaofeng, who had just woken up from hibernation, were discussing.
"Captain, I've just sent a distress signal to Earth through electromagnetic waves.”
Zhao Xiaofeng nodded and frowned.
He knew that it would take about four minutes to contact Earth through electromagnetic waves near Mars.
Including the round trip, it was a delay of about eight minutes.
The question he was thinking about now was-why did the space port deployed by the Human Alliance above Mars disappear?
The Galaxy's infrared detector and thermal imaging sensor showed that Mars had become a dark red planet without any signs of life.
As early as 600 years ago, the Human Alliance had begun to modify the ecological environment of Mars.
More than 200 years ago, the first batch of immigrants from the Human Alliance arrived on Mars.
Could it be that during his thousand years of interstellar travel, some unpredictable major disaster had happened to the Human Alliance?
Zhao Xiaofeng's heart sank.
"Captain, we have received a reply from Earth!”
Tomcat reported in a strange voice,""However, the order of this information language is different from that of the Human Alliance!”
"Can it be broken?" Zhao Xiaofeng asked.
"This message seems to be using an ancient programming language called C that we eliminated thousands of years ago. Although it is very old, my program can still decipher this ancient language!”
"What is the specific message from Earth?”Zhao Xiaofeng turned around and asked.
Tomcat frowned, looking like it was in deep thought!
"The content of the message is roughly-Hello! This is Earth. May I ask which star field you are from?”
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