If we have to pick one thing to remember from astronomy classes, it’s that the Moon is the Earth’s satellite. At least, the only natural one. Since the launch of Sputnik in 1957, almost 20,000 artificial satellites have been sent into space. According to the United Nations, which provides a database to check the status [...]
Sorry, this entry is only available in European Spanish.
Sorry, this entry is only available in European Spanish.