September 2015, PRT Imperial Institute of Technical Physics, Germany.

Jan Josef Haysen is still immersed in a lot of data. Since the donation of the project by the Russian tycoon, the whole set of experimental equipment has been unprecedentedly improved. Yang had hardly ever left the lab, and as a postdoctoral fellow in physics, he was a firm believer and eager to be able to put into practice the hypotheses of Albert Einstein. As he has been running for the past few weeks, Yang has been running the data monitoring system developed by the University of Wisconsin, scanning data from Louisiana and Washington over and over again.

Yang is going to open a can of herring and settle dinner with coffee, and it may be the same today, there are no noteworthy signals to analyze, but the sampling and comparison of data cannot be stopped.

However, this time is different.

At the bottom of the screen, a prompt flashes "A very strong signal". With a sudden, Yang stood up from his chair.

Emails were sent out one by one. Letters of reply also came one after another, and the British laboratory replied that there was no problem with the equipment, and Caltech, MIT, and Florida all wrote back to confirm. Yang thinks maybe this time is good news.

Two days later, Yang received an email from Professor Dreyford at the California Institute of Technology mentioning himself.

"Good afternoon, colleagues, I'm De Leifu. Originally, I thought it would take at least 2 years or more, maybe 5 years. You know, it's been at least twenty five years since Mr. Einstein came up with this theory. It's just that, for us who are ready, maybe three weeks is not sudden. Yes, we did receive greetings from the universe, only us! Even the gamma-ray telescope did not receive it, so to speak, we have already made a preliminary judgment that mankind has an extra pair of eyes when facing the universe."

Yang swallowed uncontrollably and clenched his fists tightly.

"First of all, we would like to congratulate Dr. Yang. Congratulations, Doctor, you are indeed the first to "see". Guys, I just received an analysis from the University of Wisconsin -- two black holes about 29 times and 36 times the mass of the Sun have merged after six times the mass of the Sun. And all this is "seen" by us!, the following is a detailed data analysis report......"

"Hahaha~~" Yang looked at the screen, raised the coffee cup in his hand high, and laughed stupidly......