NASA, referred to as NASA, is an administrative scientific research agency directly under the federal government, founded in 1958, has presided over including the Apollo moon mission, the Skylab space station, and later the space shuttle, etc., people are familiar with cutting-edge space research, and has nearly a dozen large scientific research centers, is now the most authoritative space agency on the earth. Pen, fun, pavilion www. biquge。 info

The Ames Research Center is one of the three largest laboratory centers in the organization, located at Moffett Airport in Sunnyvale, California.

In addition to the research and development of aviation equipment, it is also the only scientific research institution that promotes lunar science and cosmic object exploration.

Most of the photos and information released by NASA on its official website every year come from the results of the Ames Research Center, and to put it mildly, standing here is standing at the gate of mankind to space.

However, today, the atmosphere of the Ames Research Center was a little solemn, and early in the morning, a military helicopter transported two mysterious packages to Laboratory Seven, followed by several authoritative experts in the field of meteorites were temporarily summoned to begin to study the contents of the mysterious package.

If this was just a bit of a nerve, then the arrival of Paul Selva, the Air Force general and vice chairman of the US Joint Chiefs of Staff, completely suffocated the soldiers guarding the door.

However, the general was obviously in no mood to pay attention to the GIs' thoughts, and his face turned pale, and after passing through the security check, he entered the busy Laboratory Seven.

As soon as he entered the door, he could not wait to unleash his anger and shouted at the person in charge: "Dr. Albert! You'd better give me an explanation right away! What exactly is the so-called unnamed attack you mentioned? You must know that just because of your words, we have secretly raised the alert level of the whole country to orange! All troops have entered a state of combat readiness! Even nuclear weapons! All countries in the world think we are crazy! I dare to swear that at least 1,000 nuclear warheads are now aimed at the mainland of the United States!"

"General, I can understand your nervousness and anger, but please stay calm, and when you see these two meteorites that have just been brought back from Philadelphia, you will understand what I mean. A white man in his mid-fifties explained.

"Meteorites?!God! Are you kidding? The earth is attacked by hundreds of thousands of meteorites every year, most of which burn up in the atmosphere, and no more than a hundred can fall, and 90 percent of the 100 will fall in the ocean.

If it weren't for the other party's reputation in the field of outer space, he would have the urge to rush up and beat him up.

Albert sighed helplessly, walked to the front of two meteorites with a diameter of about one meter, and said to another researcher who was busy: "Finley, tell this thunderous air force general about what you found a few hours ago." ”

The young man called Finley lowered his eyes, walked to the side of the test bench, picked up a test report and read: "According to the instrumental test, the main component of these two stone meteorites is iron, magnesium and silicate, of which the metal iron and nickel content accounts for about 20 percent, and the distribution is very uniform, and the structural difference between the two is not more than 0.3 percent.

In addition, judging by the size of the crater explored at the site, the stone should have fallen from a distance of about 1,000 meters above the ground, rather than protruding from outside the atmosphere.

Finally, and most importantly, we calculated that the meteorite fell in orbit 90 degrees perpendicular to the ground, with a negligible error.

As you know, the Earth is constantly turning, and even with a hovering aircraft like a helicopter, it can't be so accurate.

Although it is theoretically possible to do it, the probability that two missiles in a row will be the same, and it will never exceed five percent. ”

Paulo Selva was not an idiot, and instantly heard the problem from a large pile of data, and asked in a daze: "What do you mean...... Are these two meteorites artificially created weapons?"

"I'm sorry, I don't know, General. As a scientist, I only believe in data and facts. If you had to make an inference, I would say that either we encountered some mysterious phenomenon that cannot be explained by common sense, or someone invented a cutting-edge stealth vehicle that could evade all strict control methods, and then threw two artificial meteorites on our heads as a threat in order to show their power. With that, Finley shrugged his shoulders.

"General, you should understand my intentions by now, right? If someone can unwittingly drop a meteorite from the top of our heads, he can also drop a bomb and a nuclear weapon. Unfortunately, the missile defense system and prevention and control system, which the military has spent tens of trillions of dollars to build, are no longer of any role at present. Our skies are currently undefended, at least for the intruders this time. ”

After saying this, Dr. Albert sighed helplessly and gently rubbed his swollen forehead.

As an expert on celestial meteorites for more than 30 years, it was the first time in his life that he had seen such an incredible situation.

"Damn! Are you kidding? A flying machine that can avoid radar, satellites, and the human eye? What country in the world can build it? We in the United States can't do it! It's more science fiction than science fiction!" Paul Selva clenched his fists and growled.

I don't know if he really doesn't believe it, or if he doesn't want to believe it at all......

Finley dropped the report and kindly reminded: "General, why don't you call the North American Air Defense Command? Although the meteorite falls very quickly from a height of 1,000 meters, it will take some time, and the radar should be able to scan it." ”

Without hesitation, Paolo Selva immediately pulled out his military mobile phone and dialed the number of NORAD.

After a short conversation, his face immediately became more ugly, and it took five minutes before he hung up the phone, and said with a short breath: "Okay, you are right, yesterday at about 11:20 noon, there was indeed a radar detection over Philadelphia, about a thousand kilometers away from the Lannett Pharmaceutical Factory, two reflected signals appeared successively, but they disappeared in less than ten seconds, and the meteorite didn't pay much attention to it when it was found later." Other than that, no suspicious signs were found. ”

Dr. Albert took a deep breath and suggested in a low voice, "General, I think we should collect this time period right away, just past the satellite images over Philadelphia, and see if we can find any clues." Another thing, I heard from an old friend the other day that someone once brought a strange egg to his laboratory for testing, and the surface of the egg was able to absorb all electronic instruments, including X-rays, radar, infrared, etc., and you might want to start investigating......"