Mai Dong threw himself into the core cabin and grabbed the headphones.

Her heart was pounding, and her hands were trembling with nervousness, and Mai Dong was afraid that the noise just now was just a small bug in the computer, and there was actually no radio signal at all...... The girl put on her headphones, held her breath and listened carefully.

A few seconds later, there was another "drop-" sound, the waveform on the screen jumped, and Mai Dong's heart suddenly contracted.

There was nothing wrong with the computer, it was indeed radio waves, and they were very regular, and the space station received an unfamiliar signal, it was like Morse code, flashing every few seconds, as if it were someone's electrocardiogram on the oscilloscope.

Mai Dong was ecstatic, this was obviously not some noise, but a meaningful electromagnetic signal.

For more than 100 days, she had been here day and night with little hope, listening to the sounds and movements from all directions, and now there was finally a result, although it is not known where this radio wave came from, nor what information it contains, but it is very likely that it comes from intelligent beings, and it is more likely that it comes from humans, such as the Orion One spacecraft or other remnants of human spacecraft, and maybe even the Earth.

The girl's tears welled up immediately.

In the endless darkness of the night, she finally saw a ray of light.

"Mr. Cat! Tang Yue! Mai Dong wiped away his tears and immediately contacted the old cat and Tang Yue in Kunlun Station, "Mr. Cat, Mr. Cat!" I've received a radio signal! ”

The old cat and Tang Yue in Kunlun Station were startled and jumped up from their chairs.

Radio wave?

"Who sent it?" The old cat asked.

"What did you say?" Tang Yue asked.

"I don't know yet, but the signal is clear, and it keeps going!" Mai Dong was very excited, "I'll send you the results, you can see what it is." ”

Old Cat and Tang Yue nodded, with both doubts and shocks in their hearts, they were very nervous with a little extravagance, but they didn't dare to ask too much...... If there is a radio signal, where does it come from? Is it the long-lost Orion One spacecraft that has reappeared? Or did some other man-made spacecraft come back from the dead? Maybe this radio wave will become a turning point in everything, so that Mai Dong can successfully land?

Mai Dong turned the signal around, the old cat and Tang Yue couldn't wait to grab the headphones, and the two stared at the computer screen, standing in place and listening for a long time.

"How? How's it going, Mr. Cat? Mai Dong asked eagerly, "Mr. Cat, Tang Yue?" What exactly is it talking about? Is Morse code? ”

The old cat didn't speak, and Tang Yue didn't speak either.

A man and a cat stood on the floor, their faces very solemn, motionless, like stone statues.

"Mr. Cat...... Tang Yue? ”

Tang Yue took a deep breath, took off his headphones first, and smiled at Mai Dong on the screen, "Mai Dong, this may be a very amazing achievement. ”

"Really?" Mai Dong's eyes lit up, "So what is this radio wave talking about?" Who sent it? Is it human? Is it the Orion spacecraft? ”

The old cat took off his headphones and said slowly, "It's a pulsar."

The girl froze.

Tang Yue turned his face away and sighed, he and the old cat had just seen that this was an electromagnetic pulse emitted by a pulsar, the rotation period of the pulsar is extremely short, and it will emit electromagnetic radiation like a lighthouse spinning, so this signal is so stable and regular, this radio wave does not come from humans, let alone from the Orion spacecraft, it does not contain any information...... It is just a natural phenomenon in the universe.

The discovery of a pulsar is indeed a significant academic achievement, so Tang Yuecai said that this signal can only be an academic achievement at best, and it has nothing to do with human spacecraft or anything.

"It's a pulsar with a rotation period of about three seconds, and the space station receives its signal." The old cat sits in a chair with his eyes fixed on the screen, and the signal on the oscilloscope beats periodically and regularly.

"Such as ...... If it's a pulsar, why are we only receiving its signal now? Mai Dong's voice trembled, and she still refused to give up hope, "It should always be there......"

"It's really always been there." The old cat nodded, "This pulsar should have been recorded a long time ago, the communication system on the space station will filter it directly as background clutter, and you may hear its sound again because you have adjusted the computer before, which is why this signal is only heard by you and we are not heard, because the Kunlun station is still shielding it." ”

Little by little, the girl's face turned pale, she had indeed adjusted the station's computer and communication system, and this signal was only heard after the adjustment.

According to the characteristics of electromagnetic waves, Lao Mao quickly retrieved this pulsar from the database of Kunlun Station, numbered PSR-J1078-2416, which is more than five million light-years away from the solar system.

This is a real hammer.

"Original...... Just a star......"

Mai Dong lowered her eyes, and her joy instantly turned into a burden, almost crushing her.

"Mai Dong ......" Tang Yue searched his stomach and wanted to say something, but he found that it was useless to say anything at this time, it was just a false hope, they pierced the illusion, but at the same time, they also shattered the hope in the girl's heart.

Tang Yue wanted to hug her hard, maybe it would make her feel better, but with a distance of four hundred kilometers, he couldn't even borrow a shoulder.

"I see...... Thank you, Mr. Cat, Tang Yue, I'm a little tired and want to go rest, goodbye. ”

Mai Dong took a deep breath, lowered her head and drifted away from the camera's field of vision, slowly passing through the interface of the core cabin, the girl's heart was empty, she didn't want to say anything, she just felt so tired and tired, and she felt tired even when she turned her brain.

She knew the source of the radio wave, which came from a star more than five million light-years away.

Five million light years, unimaginably far away.

She could pick up voices from millions of light-years away, but she couldn't find the Earth at arm's length.

What's the point of searching for so long?

Mai Dong opened the curtain of the bedroom and slowly opened the sleeping bag, the action was mechanical and stiff, and a small Shiba Inu doll floated over and hit the girl's hand.

Mai Dong was stunned.

She smiled palely, raised her hand to grab it, and pinched it, "You're coming to meet me again......

Large tears welled up from the girl's eyes, and Mai Dong finally couldn't help it, and she hugged the stupid Shiba Inu toy and cried bitterly. She hadn't cried like this when the earth disappeared, but grief never went away, let alone disappeared, it would only hang far behind you, and when you were tired of running, it would catch up and swallow you.

Mai Dong resigned herself to her fate at this moment, the last faint hope in her heart was finally shattered, followed by deep grief and despair, she accepted this fact, the earth was gone, the Orion spaceship was gone, everyone was gone, no one would come to save her, all her relatives and friends, her whole life was wiped out.

The girl's cry echoed in the space station, but in the lonely and dark deep space, not even the cry could escape this small square inch.