Skip to main content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Science.gov is a gateway to government science information and research results. Science.gov provides a search of over 55 scientific databases and 200 million pages of science information with just one query, and is a gateway to over 2100 scientific websites.
MedlinePlus is the National Institutes of Health's Web site for patients and their families and friends. Produced by the National Library of Medicine, it brings you information about diseases, conditions, and wellness issues in language you can understand.
NASA leads the nation on a great journey of discovery, seeking new knowledge and understanding of our planet Earth, our Sun and solar system, and the universe out to its farthest reaches and back to its earliest moments of existence
New & Interesting
Science of the Summer Olympics
Missy Franklin and Fluid Dynamics? Ursain Bolt and biomechanics? Learn more about the science behind the Summer Olympics.
Household Products Database
What's under your kitchen sink, in your garage, in your bathroom, and on the shelves in your laundry room?
Learn more about what's in these products, about potential health effects, and about safety and handling.
Chemical and Engineering News
Chemical, Life Sciences & Laboratory News
Science & Engineering Librarian