He coughed and said, "Have those research institutes been upgraded?"

Seeing that Zhao Yu was a little embarrassed, Uncle Da quickly calmed down his emotions, returned to his usual appearance, and replied: "The upgrade is complete. I have installed the lunar shielding system while I can't contact you..."
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"It's very fast!"

Zhao Yu nodded and said: "Now, can the outside world not see the moon anymore?!"

"Yes, we will make a backup copy of the external electromagnetic wave signal, and then send the original electromagnetic wave according to the old track to ensure that no flaws will be left..."

"What if someone else uses an astronomical telescope to look at it?"

"I can only see scenes from the past five years..."

As Uncle Da spoke, he brought up a three-dimensional image, which was wrapped in a milky white light curtain over the moon.

"This light curtain is transparent. Just to facilitate your understanding, I added color here..."

"The light curtain is emitted by the shielding system, about 200 kilometers above the ground..."

"As long as outsiders are not within this light curtain, they cannot see the true situation inside us with the naked eye or any other optical means!"

Zhao Yu nodded and said: "In this case, can we expand the base?!"

Previously, the base had been placed underground and I did not dare to place detection equipment outside because I did not know where I was.

He was afraid that the technological level of the detector he built was too low and that instead of finding the enemy, he would attract the enemy.

Now that it is clear that they are on the moon and the moon's shielding sky has been opened, the base can develop in a big way.

"It can be expanded. I have made a priority construction plan. Do you want to see it now?"

"We'll talk about this later..."

Zhao Yu waved his hand and said: "Is the earth shielding system ready?"

His side is safe, but the other side of the earth is still sending signals to the universe all the time. Who knows when they will be received by aliens, it is better to block them as soon as possible.

"It's done, I don't dare to send a spaceship to install it..."

Uncle Da hesitated and said anxiously: "Should we tell the earth?"

Seeing Uncle Da being so cautious, Zhao Yu felt a little uncomfortable.

At the beginning, Uncle Da would destroy the earth if he disagreed.

But now, because he was once a human on Earth, he has become like this.

Do you think that in your heart, people on Earth are more important than them?

Zhao Yu sighed.

I understand that my journey to the earth has caused great trouble to Uncle Da and others.

"Uncle Da, this is my home and you are my family, do you understand?!"

"Sir..." Uncle Da didn't seem to react for a while.
Chapter completed!