Space, or outer space, is the void existed between celestial bodies. That void is not completely empty. It also contains a low density of some particles, especially, hydrogen, electromagnetic radiation and interstellar medium. Scientists argue where the boundary between the atmosphere of the Earth and the space is because the density of the atmosphere decreases gradually as the altitude increases.
There are many space secrets. Many things concerning the space are not known or not studied. Anyway, modern people, especially scientists and astronauts, do their best to study the space. Yuri Gagarin was the first human to journey into outer space. His spacecraft completed the Earth orbit on the 12th of April in 1961. After that in 1969 the spacecraft "Apolo-11" landed humans on the Moon. Nowadays the International Space Station works in low Earth orbit.
One of the problems concerning the work of the astronauts is safety. First of all, it is the threat of orbital debris. It containing different objects such as spent rocket stages, different materials, defunct satellites and so on. One more problem is radiation. An astronaut in the space experiences the dose of radiation per day which a human on the Earth experiences
Объяснение:
Объяснение:
Summer is my favorite season. Summer I spent on the street. I to ride a bike, walked, to played pin-pong. In the summer I read school literature. I often went to shopping center for shopping. But also I went to camp. There I time held good . I with my friends win competitions, danced, drew, walke
Summer is my favourite season. Last summer I didn't go anywhere in June and in July, and I stayed almost all the time in the city. I rode my bike, walked in the park in fresh air, played ping-pong with my friends. I also read some books on Literature, History Geography and Biology. I often went to the shopping centre to do the shopping. But in August I went to a teens summer camp. It was really fun. It was situated by a lake and we swam and dived in it when the weather was warm and sunny. I made some new friends there. Together with them we took part in different competitions, festivals. We played sport games, danced, drew, went on a boat trip. In the camp there were discos almost every night. I guess, those were the most exciting days of my rest last summer. I got bright impressions, lots of funny photos and some new friends.
ДРУГОЙ ТЕКСТ:
I love summer holidays. I like it because during my holidays I can relax and have fun. I can do everything I like. I don’t have to get up too early. I don’t do my homework. I went out with my friends, read, listened to music, watched TV, played computer games. I spent some weeks in a summer cottage with my grandparents. I helped my grandpa to dig the garden, to water plants, and to gather fruit and vegetables. Also I was fishing with my grandpa. We were cooking fish together. I enjoyed floating by boat, swimming in the river and helping my grandparents. During my summer holidays I made many new friends, read a lot of interesting books, got to know a lot of useful things. Now I feel ready to get back to school. I am happy to meet my friends and teachers.
