Bian Ge was dumbfounded, speechless in shock, and suddenly came back to his senses and asked, "What is the distance?" ”

Qi Haifeng glanced at the screen: "The satellite cannon is 500 kilometers, and the enemy ship is 600 kilometers." ”

"So close?" Bian Ge looked disappointed.

Qi Haifeng glanced at Bian Ge: "Then how much do you want?" ”

"Why do you have to 350,000 kilometers?" Bian Ge said without hesitation.

"Thirty or fifty thousand?" Qi Haifeng rolled his eyes, "You can directly hit the synchronous orbit, and you won't directly destroy the alien fleet......

Before he finished speaking, another wave of lasers lifted off on the ground, aiming at the alien fleet at an altitude of 1,000 kilometers, and successfully eliminated three enemy ships.

The alien fleet was in an uproar, so the alien warships invariably turned around and ran.

The aliens reacted quickly, but the laser air defense network reacted even faster, firing into the air in waves, killing more than a dozen enemy ships one after another.

Counting the enemy ships killed in other directions, fifty or sixty alien warships were killed in such a short period of time, and the results can be described as brilliant.

However, the range of the ground air defense network is indeed far inferior to the super cannon, after the aliens raised the orbital altitude to 2,000 kilometers, the laser from the ground hit the enemy ship again, but this time the enemy ship only emitted a puff of green smoke, and then fled quickly, and the laser from the ground had to stop.

Everyone on the Donghai had a feeling that they had escaped, and Long Jianguo looked at Qi Haifeng for the first time: "Is this a hold?" ”

Qi Haifeng nodded: "It should be." ”

"Great!" Bian Ge waved his fist.

After being frightened for so long, I finally heard good news.

Although the others didn't say it, they were also relieved in their hearts.

What everyone is most worried about is the fall of the earth, now that the earth is blocking the alien fleet, regardless of whether the earth or the moon is not an alien plot, they can at most fight the idea of Ganymede...... Ye Han wished they had rushed to Europa, the few nuclear bombs in the center of the earth were lonely, waiting for the aliens to come.

Thinking of this, Ye Han suddenly remembered one thing: "Old Qi, are there two alien spaceships rushing to Europa?" ”

"Yes, that's the case."

"Where's the ship?"

"You asked...... I do not know! Qi Haifeng made a rare joke.

Ye Han also smiled: "Okay, if you don't know, you don't know, if the aliens dare to go up, they will definitely dare to blow up Europa." ”

A few nuclear bombs can't destroy Europa, but it is absolutely problematic to destroy the planetary engine placed in the center of the earth, and Europa will remain in front of Earth forever.

Hitting the Earth with Europa? Wish for the moon!

The crisis on the earth was lifted, and everyone's mood relaxed, and they chatted for a while before leaving the bridge.

There is still more than a month to go, and Ye Han plans to wait for the aliens to leave the earth, then re-inject hibernation and sleep all the way back to Beiyue Continent.

His little abacus was very loud, but he didn't expect to sleep soundly that night, and suddenly Qi Haifeng called out: "Master Ye, something happened!" ”

Ye Han's sleepy insect suddenly disappeared: "What's wrong?" ”

"Alien fleet, they're flying to L4 and L5!"

Ye Han's mind paused, and he suddenly realized what Qi Haifeng said: "Lagrange point...... Asteroid? ”

The news was like a basin of ice water poured on the head, and the cold seeped from the epidermis to the bones.

Qi Haifeng's face sank like water: "It should be." ”

Ye Han hurriedly climbed out of the sleeping bag: "Is there any news from above?" ”

"Not yet."

"Is there a report on it?" Ye Han quickly put on his clothes.

"Reported." Qi Haifeng said, "But I think the above should have known for a long time." ”

"I'll be there shortly." Ye Han jumped out of the dormitory as he spoke, flying nimbly in the corridor, and arrived at the bridge after a while.

The main screen has long been replaced with a top-down view of the Earth-Moon system, and the alien fleet at this time is divided into two, one flying towards L4 and the other towards L5.

The Lagrange point, also known as the translational point, is the gravitational equilibrium point between two large celestial bodies, and there are five in total.

L4 and L5 of the Earth-Moon system are located in front of and behind the Moon, and they are in the orbit of the Moon, and any point connected to the Earth and the Moon can form an equilateral triangle.

The most critical thing is that there are asteroids at these two points!

(PS: I can't find this information on the Internet, there should be no asteroids on L4 and L5 of the Earth and the Moon, here is the plot needs, please don't worry too much - this paragraph is not included in the paid word count!) ）

L4 and L5 are both stable gravitational equilibriums, and these asteroids are not a problem at all in normal times, but if aliens obtain these asteroids, it will directly threaten the safety of the earth.

Ye Han stared at the screen for a while before asking in a low voice, "How long is it left?" ”

"At the current rate, L4 has another hour, L5 is a little longer, between one and a half to two hours." Qi Haifeng said.

"Isn't there any movement up there?" Ye Han asked without giving up.

Qi Haifeng shook his head: "It's too far." ”

Ye Han was stunned and repeated: "Yes, it's too far." ”

Both the Earth and the Moon are nearly 400,000 kilometers away from these two points, and it takes two days to fly over this distance at the earliest.

After looking at it for a while, Ye Hancai shook his head and said, "It should be fine." ”

There aren't many asteroids at the two points combined, and then again, the Earth's air defense network even aliens have to retreat, so what is it to deal with an asteroid?

A flashing cursor suddenly appeared on the screen in front of Qi Haifeng, and he immediately said, "There's news up there!" ”

Ye Han immediately floated to Qi Haifeng's side: "What did you say?" ”

Qi Haifeng clicked on the icon and swept it at a glance: "It's nothing special, it's just to remind all units to prepare or something...... Oh, my God! ”

"What's wrong?"

Qi Haifeng raised his head and looked at Ye Han with a stunned gaze: "It was said that there are several asteroids that will come to the earth immediately, the smallest one is two or three kilometers, and the largest one is almost eight kilometers. ”

Ye Han's whole person was not good: "How many are there?" ”

"Say six."

Ye Han turned his head sharply and stared at the alien fleet: "It must be aliens!" ”

There are many small celestial bodies near the Earth, but most of the asteroids are less than three meters in size, and there are very few asteroids above three meters.

Larger asteroids are not nothing, but they are definitely not the norm, and it is usually difficult to appear one, so how can there be six at the same time now?

The only explanation is aliens.

And Ye Han thought of Ganymede.

By the time Ganymede was destroyed, the interception campaign had been over for more than a month, but it was impossible for the North Sea ship group to hide from the aliens.

Although the aliens are down, they are also an interstellar race, and it is impossible not to understand the intentions of the North Sea ship group, if it weren't for the way, the aliens on Europa would have run out long ago.

Therefore, it is likely that the aliens deliberately brought several asteroids after discovering the intentions of the North Sea ship group, in order to repeat the destruction of Ganymede and retaliate against humanity...... But what does it mean for the alien fleet to run L4 and L5? Do these two places have anything to do with the asteroids that are about to arrive on Earth?