so many questions that each of us can ask and which he will find the answer in this book full of exciting details.
What is space?
- Space is nothingness, or almost nothing.
- It lies between the earth and the moon, between the solar system planet between the stars.
- Virtually empty, it lacks area.
- In a portion of space of the talle of a house, one would find only some atoms of deferent gases and can be some particles of dust.
- Meteorites and comets pass through it.
this category facts categorized into 10 headings: the universe, the earth, animals, plants, science, the human body, the arts, sports, and a category of general knowledge.