July
09
/ 2019
Many people are convinced the Moon lacks an atmosphere. They believe it is directly exposed to the vacuum of space. But this is incorrect. In fact, there is an atmosphere on the Moon. It is far less dense than Earth’s and wouldn’t be safe to breathe. However, it does exist and has been measured, by instruments carried to the Moon by Apollo astronauts and by reconnaissance satellites put into lunar orbit by NASA in subsequent years. The atmosphere on the Moon is less than paper thin. On Earth, at sea level, the air we breathe contains about 100 billion billion molecules per cubic centimetre. This sounds incredibly thick, but of course we can’t see the air on Earth, because of
