Where have you found articles similar to the fact that they are not true?
In a nut shell
With the rise in information be shared as quickly as the internet allows, along with the increase of false information, news outlets are no longer worried about being the first with the details. Instead they are working to find the correct information before sharing the details. Based on the article Hard Evidence: how does false information spread online?, "trust in the source of information understandably continues to be one of the most, if not the most important asset a news organisation has".
Another side of media that is sometimes exploited is photography. In this digital age, meme's are used as a sort of political cartoon in order to share a persons thoughts on a topic. Here is an example of one incident that went viral by the "tweaking" of a photo.
When assessing for validity and authority, try using this checklist:
Does the speaker have experience or qualifications to speak about the topic?
Who does the person write for?
Do they have professional qualifications to address the issue?
Does the information come from a reputable source?
Primary vs secondary source
Does the source/information state facts, opinions or bias?
Does the source/information represent balanced points of view and perspectives?
Does the source/information meet your research needs?