WolframAlpha Computational Intelligence

Wolfram Alpha, the oddly named Web resource, isn't quite a search engine nor a database, but a way to find info online based on computation and algorithms. Ask a search engine, "What's the distance to Rigel?" and you'll see a list of links to pages that might have the answer. Ask Wolfram Alpha, and you get "266.7 parsecs," plus the distance in miles, light years, and kilometers.

https://www.wolframalpha.com/