Posts shared on social media may be almost instantaneous but are often very brief, may be biased and are unlikely to tell the whole story.
News events may, in a few hours, days or weeks, be covered in news websites, newspapers, television programs, and magazines but often contain less specific information and offer a more general overview. Authors are usually assigned the story by an editor.
Scholarly articles and non-fiction books take the longest to be published and to read but are the most detailed. As time passes, authors with greater expertise (authority) provide a more in-depth analysis of the event and how it fits into the theory and prior research of a specific discipline. Journal articles may be peer-reviewed before they are accepted for publication. Most academic researchers will provide an extensive list of the sources (bibliography or references) which they read and cited.
One source is not enough to write a strong paper, but you can write a solid paper by synthesizing information gathered from a variety of sources.
Information Timeline, 2020, Elizabeth Waugh from CSC124 Information, Technology, and Society: Information Defined