It's reasonable for me to have a two-way foil for a second-level civilization, right?

He raised his head abruptly and looked at the dusty sky.

The main color is still yellow.

But if you look closely, there is indeed a little reddish brown in this thick yellow.

"hiss!"

Hong Fan took a deep breath, took three steps in parallel, and quickly ran to Andrew's side.

Andrew was squatting in a corner by the rock wall, carefully observing the situation on the ground.

Seeing Hong Fan coming, Andrew quickly stood up: "Captain Hong, take a look."

"Nothing can be seen on the surface, but the deeper you dig, the heavier the reddish-brown color will be."

Hong Fan didn't speak, but quickly squatted down and checked a small hole Andrew had dug.

The pit is not deep.

About 20cm deep.

But it can be clearly seen that under the cover of yellow sand, there are more and more reddish-brown gravel.

He carefully took out a little reddish-brown substance from the pit, and released it out of the detection instrument beside him.

It didn't take long for the test results to appear on his watch.

【Fe2O3, hematite】

Looking at the test results in front of him, he fell silent.

It's outrageous, but the test results are right in front of us.

Suddenly, Hong Fan seemed to remember something, he quickly walked to the pile of tools beside him, and picked up an engineering shovel made of high-strength alloy.

He chose a place at random, controlled the exoskeleton armor, and shoveled down hard.

The power output value of the exoskeleton armor soared instantly.

The shovel sank into the ground with ease.

"Shh!"

He pulled out the shovel forcefully, bringing out part of the sand from the ground.

Reddish brown again.

Seeing Hong Fan's unusual movements, the team members also realized the problem, and picked up engineering shovels one after another to imitate the example.

One, two, three...

Red-brown, all red-brown!

Hong Fan dropped the engineering shovel in his hand, and took a deep breath of the air inside his helmet.

Well!As soon as the investigation began, the problem was discovered!

Hematite is very common.

On the earth, on Mars, and even in the super moon above, you can see countless traces of hematite!

But on this planet, in the dawn star without oxygen, hematite is absolutely impossible to exist!

But now, so many hematites are in front of them.

In Hong Fan's view, this can only explain one problem.

Once upon a time, there was oxygen on this dawn star.

What about oxygen?

There is oxygen, there is water, the temperature is suitable, and there is a magnetic field...

This is simply the perfect place to conceive life!

But now the Dawn Star is extremely desolate.

What happened in the middle? !

Could there be relics of civilization hidden somewhere on Dawn Star, or even... Alien creatures? !

Questions popped up in his mind like a revolving lantern.

Hong Fan only felt a chill down his back.

Without any hesitation, he raised his wrist and pressed a button on the watch.

A miniature holographic projection is projected from the watch.

Perhaps because of the heavy wind and sand, the holographic projection is not very clear, and the picture is even slightly torn.

But everyone present didn't pay attention to this insignificant question, and they all moved to Hong Fan's side, looking nervously at the miniature holographic image in front of him.

Hong Fan manipulated a few buttons skillfully, and sent a help signal to the [Earth] above Dawn Star.

"Everyone, return to the planetary landing vehicle immediately!"

After issuing the call for help, Hong Fan gave the order in a deep voice.

Chapter 400 Hematite from Guangwei

In a different star, Hong Fan, as the captain, bears the lives of all the team members on his shoulders.

Even if the possibility of encountering danger is only 0.01%, he must choose the most stable approach.

Under Hong Fan's order, several team members ran towards the planetary landing vehicle not far away with nervous expressions.

As for Hong Fan, he followed slowly at the end of the team, holding the engineering shovel that had just been thrown on the ground in his hand, and vigilantly observed the surrounding rock walls and sandy ground.

After all the team members walked into the hatch of the planetary landing vehicle, he controlled the mechanical exoskeleton and ran towards the open hatch quickly.

During this period, he tightly held the engineering shovel in his hand, for fear of any unexpected situation.

After all, this is how it is done in movies and TV shows!

When the captain returns to the safe zone, there are often some accidents.

And then...the classic scene of the gourd baby saving grandpa.

He didn't want to encounter such a scene!

Hong Fan looked at the surrounding environment vigilantly, while thinking wildly in his heart.

Fortunately.

The road was smooth, except for the yellow sand all over the sky, there was nothing unusual.

He kicked his right leg, and with the help of the exoskeleton armor, Hong Fan directly crossed the last three meters and entered the planetary landing vehicle.

"Close the hatch!"

The moment the voice fell, the hatch of the same type of starship slowly fell, making a dull sound.

The heavy cabin door brings a little sense of security to everyone.

In the communication device, only the sound of slightly rapid breathing remained.

[The pressure has stabilized. 】

A gentle female voice sounded from the helmet.

Hong Fan breathed a long sigh of relief, and said with a chuckle, "Go, go to the disinfection room."

"Next, wait for the news from Earth."

……

Dawn over the star.

【Earth】, command center.

Fang Xu frowned, looking at the huge holographic projection that was full of red warnings in front of him.

"Hematite..."

He muttered to himself: "How could there be hematite on Dawn Star?!"

That's right, it's not just Hong Fan and his team.

Almost every team responsible for resource exploration has sent similar reports.

Under the Dawn Star, there are a lot of hematite ore!

This does not conform to human cognition at all!

Is it...

Oxygen really existed on Dawn Star before?

Even, life appeared in this barren planet?

For a moment, Fang Xu was in a state of confusion.

Before there was a definite answer, the infrastructure work that had just started on the surface of Dawn Star had been completely stopped.

And those exploration teams scattered in various areas also returned to the relatively safe planetary landing vehicle, waiting for instructions from [Earth].

Fang Xu, who did not come to a conclusion after several times of thinking, turned his head and asked the scientific researcher beside him, "Is Feng Yuanliang here?"

"coming!"

A hurried male voice came from the gate of the command center.

The middle-aged man was panting heavily, and hurried to Fang Xu's side: "Academician Fang, are you looking for me?"

Fang Xu nodded lightly, and gestured to the holographic projection in front of him with his eyes: "You are studying the mineral resources of the universe. Let's see what's going on."

The middle-aged man didn't have time to catch his breath, so he quickly cast his gaze forward.

Just a glance.

He rounded his squinting eyes.

"Red, hematite?!"

"how is this possible?!"

Seeing Feng Yuanliang who had the same reaction as himself, Fang Xu shook his head helplessly: "Academician Feng, is it possible for hematite to appear on the current Dawn Star?"

"Impossible! Absolutely impossible!"

Without the slightest hesitation, Feng Yuanliang directly denied it.

"Then... what happened before?"

Hearing this, Feng Yuanliang suddenly hesitated: "Hiss..."

"You mean, there was oxygen in the previous dawn star?"

"According to the current data, this possibility is not great."

"Unlike Mars and Guangwei-[-], Dawn's gravity is strong enough to retain the atmosphere."

"What's more, we haven't found any traces of oxygen." Feng Yuanliang paused, "Except for these hematite."

"That's weird..." Fang Xu stretched out his hand and rubbed the center of his brows, and muttered to himself, "I can't, these hematites must have floated from outer space."

The speaker has no intention, the listener has the heart.

Feng Yuanliang's confused eyes instantly brightened a little!

He clapped his hands violently, his expression extremely excited: "Academician Fang! You are right!"

Fang Xu: "???"

"I, what did I say?"

"Floating from outer space! The source of these hematite is probably that Guangwei-[-]!"

……

After some explanation.

Fang Xu nodded thoughtfully.

"You mean, when the atmosphere of Guangwei-[-] was relatively intact, the violent storms within it raised countless hematite powders."

"And these powders, across more than [-] kilometers, fell into the atmosphere of Dawn Star?"