An 'X' marking is set to appear on the moon Thursday evening, which will only be visible in the US and Canada. Known as the 'Lunar X' or the ... will also help the X stand out.

But stargazers in the UK and the US will be able to see a giant X on the moon this week. A rare event known as the Lunar X is set to take place on Thursday 6 March, during which a large X will ...

It goes without saying that Lunar X is not a real physical structure on the Moon, but rather a pattern of light and shadow that is created at specific times of the lunar month. The "X" is formed ...