When the first-stage rocket was only five kilometers away from the ground on the numerical table, Meng Xiaobai shouted: "All attention!"

As soon as his words fell, all the engines of the first stage rocket ignited, forming a reverse thrust to brake.

At this time, the observation platform outside the sea rocket silo of Deep Space Science and Technology was full of spectators and media reporters, who all looked up at the sky.

The body of the rocket is clearly visible, and it is descending towards the silo at a speed visible to the naked eye.

"Ladies and gentlemen, the last step is about to be ......," reporter Yin Qiu'an's words were interrupted by a deafening explosion.

All the spectators looked at the sky in disbelief while covering their ears.

Violent explosions, and many explosions! In the sky, fierce flames appeared around the rocket body, illuminating the sea surface at night as if it were day!

"Buzzing ......" Everyone's ears were buzzing in their ears, and it took dozens of seconds to gradually recover, at this time the sea was already pitch black, only a little firelight illuminated, and the situation could not be seen clearly.

"It's exploded!" exclaimed one journalist.

"Failed to recover?" Yin Qiu'an opened his mouth, unwilling to believe his guess.

"What's going on?" the others all looked at the silo nervously and blankly, and at this time, they clearly saw that part of the rocket body did not land on the sea platform, but fell into the sea water more than ten seconds apart!

They knew that this part had been damaged, and as long as it entered the seawater, the equipment in it could not be used again.

"Did the recovery really fail?"

"It's big news, but I really don't want to cover it......," someone sighed.

On the online live broadcast platform, the audience who was still celebrating just now was dumbfounded.

"Damn, the rocket exploded?"

"Recycling failed?"

"It's too early to rejoice, you guys!"

"Hey, what a pity!"

"It's okay, come on! Anyway, the satellites are sent to the sky!"

"If the recovery fails, they will lose money this time, and the rocket will have to be rebuilt!"

"Tsk, laugh without saying a word!"

……

"What's going on? Did it explode?" Tang Biyun was so anxious that she wanted to call her son to ask about the situation, but she knew that this was not the time to ask.

"Don't worry, take a look. Meng Lei frowned, waiting for the follow-up report.

Gao Yuan, Su Lianyue, Asaka Fukuda, Alina, Kaierin, Ruan Song, Pan Yu, Yu Liming...... The celebratory people listened to it and looked at the screen blankly, could it be that this rocket mission would end in failure?

Noah, the Internet big V who was still being scolded by netizens just now, saw the picture, and immediately posted excitedly: "The recovery failed, and it turns out that the rocket technology of deep space technology is still not up to par! Don't tell me that even if the satellite is sent to the sky, even if it is successful, a launch costs more than a billion, and they can't afford it!"

"Hahaha, that's exciting good news!" Samsung, a senior executive laughed.

"Exploded! Exploded! Exploded!" "Some people in the island nation were overjoyed!

United States, Australia...... Everywhere, there are people rejoicing that the rocket recovery of deep space technology exploded, otherwise they really have no hope.

"Everyone, there seems to be a little problem, we have to contact the launch command center now and ask about the specific situation!" Yin Qiuan said to the camera.

At this moment, in the rocket launch command center, the atmosphere is not so impetuous and anxious as the outside world.

"Report the situation!" Meng Xiaobai said.

"The No. 2 booster landed at a deviation of about 15 meters, fell into the sea, and was scrapped. The technician reported.

"Well, don't panic, just a booster. Meng Xiaobai's tone was calm, which eased the nervous hearts of the staff a little.

"No. 1 booster situation. ”

"Booster No. 1 landed successfully and the damage is expected to be no more than 10 percent. ”

"It's good, the No. 1 booster was successfully recovered. Meng Xiaobai nodded, "How is the situation of the first-level arrow body?"

"Looking!"

The first-stage rocket body is the most important part of the recovery, most of the Hercules rocket engines are installed on it, and the explosion just now is the first-stage rocket body.

The command center fell silent again, except for the sound of computers and machines operating.

Everyone was waiting patiently, Zhan Haoran didn't speak, but a few drops of cold sweat appeared on his wrinkled forehead.

Two minutes later, the technician replied in surprise: "The first-stage rocket has been successfully recovered, and the loss is 18%!"

As soon as his voice fell, the entire command center resounded with enthusiastic cheers, and some technicians even jumped up directly, raising their hands and shouting: "Winged God!"

"Winged God!"

"Winged God!"

"It worked!"

"Hahaha, we made it!"

"It's a success!" Meng Xiaobai also laughed.

"Yes, we succeeded!" Zhan Haoran wrinkled and said in a voice of irrepressible joy: "The sonic boom just now was too loud, but fortunately it wasn't an explosion!"

……

Through the searchlight, people can clearly see that the rocket body of a rocket stands firmly on the recovery platform, except for some wear and tear on the appearance, there is no problem as a whole.

"What's going on? Didn't it just explode?"

"What is the ??? explosion? Could it be an internal explosion?"

"Aren't rockets good?"

The media and the audience were puzzled as to why there was nothing to do with the inside of the rocket just now, but why there was nothing in its shell.

"Ladies and gentlemen, now we have connected to Professor Zeng from the Rocket Launch Command Center. Yin Qiuan said to the camera, "Hello, Professor Zeng." ”

"Hello. "The other party is a middle-aged man.

"Professor Zeng, we had a lot of questions during the launch of this rocket, but what we want to ask most now is what happened to the explosion just now? Did the recovery of the Wingshen-1 rocket fail?" Yin Qiu'an asked the question that everyone wanted to know.

Countless people are looking at the screen, waiting for an answer.

Seeing the joy on Professor Zeng's face that could not be concealed, some people had a bad premonition in their hearts.

"Our rocket has not failed to recover! The main rocket body has been successfully recovered, and the loss is extremely low, the only mistake is that a booster fell into the sea, which has little impact. Professor Zeng explained.

"As for the sound of the explosion just now, this is normal. ”

"In the process of landing the rocket body, the gravitational potential energy gradually increases! In order to reduce it from the first cosmic velocity to zero velocity, it is necessary for all rocket engines to turn on and exert a reverse force. At this time, the thrust acting on the rocket in an instant causes its reverse speed to climb sharply to supersonic speed!"

"It is well known that objects produce sonic booms when they reach supersonic speeds. The explosion just now was due to the sound of a low-altitude sonic boom on the rocket body, and it was not one, but nine, from the engine, landing gear, and stabilizer wing of the first-stage rocket and two boosters!"

"The power of a sonic boom at low altitude is quite amazing! It is no exaggeration to say that if you get a little bit deeper, you may be stunned! These nine sonic booms are superimposed, and you hear the loud explosion of the explosion. But it's not that our rocket recovery failed, it's normal. ”

After Professor Zeng explained, the reporter realized that the explosion he heard just now was an ultra-low-altitude sonic boom. The fire he saw was a fire snake sprayed by the rocket engine at full turn, and he couldn't see the sea surface clearly at night, so he mistakenly thought that the rocket had exploded. Feelings are just a false alarm!