Search Result For artificial satellite
The day the first satellite was launched – level 2
04-10-1957Sputnik was one of the most famous objects which people made....
The day the first satellite was launched – level 3
04-10-1957It was one of the most famous objects ever created by...
The day the first human stepped on the Moon – level 3
21-07-1969In the 1960s, the Soviet Union and the US were rivals...
