Why is 'Monday' the first day of the week?
Two of the earliest civilizations that used the 7-day weekday calendar were Babylonians and Jews. However, the naming of the days comes from ancient Egyptian astrologers with theUnexpected disclosure of great quests on the Sun.
Here are the greatest sun missions you may not know yet.NASA's 'window-throwing money' cases
In addition to successful space programs, the US Aerospace Agency (NASA) has many times tasted defeat and cost.