This is the 7476th most frequent Portuguese word.
nasa
"Nasa" in Portuguese means "nose" of an object, especially in aeronautics or engineering.
In this sentence, 'NASA' refers to the U.S. National Aeronautics and Space Administration, and it is used as a proper noun.
Eu li sobre uma descoberta interessante feita pela NASA.
I read about an interesting discovery made by NASA.
The word 'nasa' here is not spelled correctly and seems to be a mistake for 'na', which means 'on the'. It should be 'na mesa.'
Ela colocou as frutas nasa mesa antes de servir.
She placed the fruits on the table before serving.
As in the first example, 'NASA' is used as a proper noun denoting the governmental space agency.