avaruuslentoon
Avaruuslento, also known as spaceflight, refers to the travel of spacecraft or humans beyond Earth's atmosphere into outer space. This endeavor has been a significant driver of scientific advancement and technological innovation. The first artificial satellite, Sputnik 1, launched by the Soviet Union in 1957, marked the beginning of the space age. This was followed by human spaceflight, with Yuri Gagarin becoming the first person in space in 1961.
Space missions can be broadly categorized into several types. Unmanned missions utilize probes and satellites for
The challenges of avaruuslento are immense. They include overcoming Earth's gravitational pull, surviving the vacuum of