In the past century space journeys seemed unreal. Things started to change after Yuri Gagarin’s flight into cosmos. Some people think that the research of outer space was remembered as the most significant achievement of the previous century, whereas others disagree with this point of view.

In my opinion, space exploration was the biggest success of the 20th century. First and foremost, due to journeys to cosmos scientists managed to get more information about structure of our planet. Secondly, space flights proved that it is possible for a human to survive beyond the Earth. Finally, space exploration let people launch satellites which nowadays provide us with information about weather, climate change, GPS and etc.

However, some people claim that there were a lot of other great achieveme