Physics Questions People Ask Fermilab

Over the years, people have sent questions to Fermilab on subjects from why the sky is blue to the speed limit of the universe. Here are a selection of the most interesting questions and informative answers. If you have a question for Fermilab, email us. When submitting a question, please provide your age or profession. It helps our scientists to write a better response. Due to the volume of questions we receive, we give priority to questions related to research at Fermilab. If you are a teacher or student, please check the Newton Web site maintained by Argonne National Laboratory.

For more information you may also want to visit the Experts' Archive at