What is the content of the diary of an alien going to a tourist planet for vacation?

After reading the diary of an alien going to a tourist planet for vacation, the composition is as follows:

I read a good book in winter vacation, the title of which is Diary of an Alien's Vacation on a Tourist Planet. This book introduces nine planets, the sun and many different satellites in the Milky Way with illustrations and humor. The author writes a boring and unfathomable scientific truth as an alien's crazy journey, just like a scientific sketch, which can quickly attract people's attention.

When I open this book, I feel like a passenger in an alien spirit bubble adventure, and I have experienced a thrilling space adventure in a luxury spaceship. On a dark night, the Milky Way flowed in the night sky like a pool of milky saliva flowing from the mouth of a huge baby.

First, we interviewed our 4.6 billion-year-old grandfather and grandson. Then I flew over the "Black Hole Hotel", which has irresistible gravity. Once she sucks it in, it will be crushed to pieces. I also saw the ice layer of Ganymede with a thickness of kilometers and the ocean with a depth of 100 kilometers; Finally, I watched a doomsday forecast. A huge galaxy swallowed up the whole galaxy, and the earth was sucked into a horrible black hole.

After reading this book, I was filled with emotion. In the solar system, there is no better place than our home on earth. We should not only rely on the earth, but also love it, protect it, love its bright sunshine, fresh air, rivers, lakes and oceans, as well as our friends in animals and plants and ourselves.