"So, what about the solar wind?"

Qiao Bao looked for it on the screen, "Could it be that Saturn and Neptune are like it, it's a strong wind that will blow Qiao Bao away?" ”

"That's completely different."

At this time, a big rabbit came over, and she had been observing Qiao Bao and Pink Moon for a long time.

"The solar wind refers to the stream of charged particles of supersonic plasma ejected from the upper atmosphere of the Sun, and in the absence of the Sun, this stream of charged particles is also commonly referred to as the stellar wind."

The big rabbit clicked on a screen a few times, and a video of the solar wind appeared, "The effect of their flow is very similar to the flow of air, so it is called the solar wind." ”

"So what is a coronal hole?"

Qiao Bao asked curiously again.

"The solar corona is not uniform, and there are special areas where electromagnetic radiation is weak, and the temperature and density are much smaller than the surrounding ones, which are called coronal holes."

The big rabbit continued, "Okay babies, it's too early to tell you this, and you don't understand it, so it's better to grow up quickly and learn more knowledge." ”

"That's it, Qiao Bao, the solar observation point can't stay too long, we should go, the spaceship can't stand it."

Pink Moon and Qiao Bao said goodbye to the big rabbit and flew back to Earth with the departing ship army.

"Qiao Bao, I'm leaving too. You have to grow up well, study hard, become a scientist in the future, and study the planets in the universe well. ”

Pink Moon took Qiao Bao's hand and said, "The Milky Way has at least 100 billion stars with a diameter of about 100,000 light years.

The Sun is located on the spiral arm of the constellation Orion north of the galactic plane, about 30,000 light-years from the center of the Milky Way and about 26 light-years north of the galactic plane.

And the whole universe is boundless, all kinds of unknowns are waiting for us, Qiao Bao, the future, it is up to you to create. ”

"Hmmm! Qiao Bao will! Qiao Bao also has a good friend of Pink Moon, we grow together and learn together! ”

Qiao Bao reluctantly took Pink Moon's hand, looked at him and smiled at himself, and finally disappeared into the vast sea of stars.

"Pink Moon!"

Qiao Bao wakes up from a dream and finds himself holding a rabbit rag doll.

"It's... Pink Month? ”

Qiao Bao hugged Pink Moon tightly and nodded seriously, "Pink Moon!" That's our promise! Qiao Bao must grow well! Work hard to learn all kinds of knowledge, and when the time comes, I will take you into space to find our planetary friends! ”

"Qiao Bao! I went to the kindergarten for a physical examination! ”

"It's coming!"

Qiao's mother heard that Qiao Bao was awake, so she came in to pick up Qiao Bao to go to kindergarten.

In the kindergarten, there was a long queue, and Qiao Bao obediently walked into the team of his class.

In front of each project sat a young doctor in a white coat, smiling softly at the little ones.

"Line up, the babies of the sun table can come and measure their height!"

Qiao Bao is the baby of the sun table, because of his small stature, so he stood at the front, he led the children, to the place where the height was measured.

"Come to Qiao Bao, stand up, the doctor will help you measure your height... Wow, Qiao Bao, you're 108 cm now! It's 13 centimeters taller than when I first entered the park, which is great! ”

The doctor praised Qiao Bao, and after registering the data, he asked him to stand by and wait.

Soon, the babies at the sun table finished measuring their heights, and Qiao Bao took them to measure their weights and came to the place where their eyesight was checked.

Qiao Bao was particularly confident in his eyes and took the lead in walking.