Questions & Answers about Himmelen er grå.
Because himmelen is the definite form of the noun, meaning the sky.
- himmel = sky / a sky
- himmelen = the sky
In Norwegian, the definite article is often added to the end of the noun as a suffix instead of being a separate word.
The ending -en is the usual definite singular ending for many common gender nouns in Bokmål.
So:
- en himmel = a sky
- himmelen = the sky
This is a very common pattern in Norwegian:
- en bil → bilen
- en stol → stolen
- en himmel → himmelen
Because Norwegian usually expresses the by attaching it to the noun.
In English:
- the sky
In Norwegian:
- himmelen
This is one of the biggest differences from English. Norwegian does have structures where a separate determiner appears too, but in a simple sentence like this, the suffixed form is the normal one.