The term you're looking for is 'withdrawal'. This occurs when a news story is taken back or no longer considered valid.
Typically, it's referred to as 'disavowal of a news story'. It means the story is no longer being presented as true or accurate.
It's called 'retraction'. When a news story is found to be incorrect or misleading, it might be retracted.
The term commonly used is 'breaking news'. When a news story becomes public and is of immediate importance or interest, it's often referred to as breaking news.
Well, it could be called 'news release'. This implies that the information is being officially sent out and made accessible to the public sphere.
It's usually called a 'news brief'.
It's called news manipulation. This is when the details or essence of a news story are altered.
The main news story is often called the 'lead story' or the 'headline story'.
A professional news story is often called a 'journalistic piece' or 'news report'.
An ad is usually short-term. It's designed to have a quick impact and generate immediate responses.
It's called a 'hard news story'. These are focused on presenting factual information without much opinion or interpretation.
In APA citation, a news story is typically referred to as a 'Newspaper Article'.
The term for finding news stories is often called 'news gathering' or 'news sourcing'.