Users can find free answers for all types of questions by visiting online resources such as Ask a Scientist. There are several Ask a Librarian websites and resources that can provide users with the answers they need.
On the Ask a Scientist website, users are able to submit their inquiries to professionals in a variety of scientific fields, including geology, engineering, lunar science, space science and astrobiology.
On the Ask a Librarian website from the Library of Congress, users can search through a number of questions to find the answers they require. Some rooms even feature a chat function that allows users to connect with a librarian to ask a live question.