This is the 15209th most frequent Polish word.
sensacyjnych
"Sensacyjnych" translates to "sensational" or "thrilling" in English.
Here, 'sensacyjnych' is used as an adjective describing the type of books being lively, exciting, or thrilling.
Czytałem kilka sensacyjnych książek w zeszłym miesiącu.
I read several sensational books last month.
Here, 'sensacyjnych' describes 'news', emphasizing that the stories were exciting or scandalous, grabbing attention.
W gazecie było dużo sensacyjnych wiadomości o politykach.
There were many sensational news stories about politicians in the newspaper.
In this case, 'sensacyjnych' modifies 'moments', marking them as thrilling or causing astonishment.