Google just updated it's image search engine by improving best guesses, adding the knowledge graph to image web search results and adding new content to the image search results.
Image search will make educated guesses! Yes, Google is giving it's IA capabilities a spin by making guesses of answers to deliver something super specific and related to you.
Google wil also try to deliver a knowledge graph result if one is available.
When you upload an image to Google and that image is related to some major news stories, Google will possibly display recent related content in the search results.