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Science Reference Services (Science, Technology, and Business Division)

Notice:As the Library of Congress gradually begins to reopen its Reading Rooms for research, we are putting safety first with new procedures and practices that protect everyone’s health. Confirmed appointments are required for entry into Library facilities, and everyone must follow the health and safety protocols established by the Library, in consultation with public health professionals. Most of these protocols are mandatory, regardless of vaccination status. Currently Science and Business reference services are provided in the Main Reading Room by appointment only between the hours of 9:30 am – 12:30 pm and 1:00 – 4:00 pm, Monday – Saturday. To schedule an appointment, please submit a request via Ask a Librarian or call (202) 707-5639. For details on Reading Room openings, appointments and “Know Before you Go” checklist, see:

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Featured Webcast

Martian Mud: Recent Discovery of Organic Matter on Mars

Image of flyer for NASA talk on Martian mud


Everyday Mysteries:
Fun Science Facts

How did the squash get its name?

a pile of squashes of different colors, striped yellow, orange, grey and white

Chiswick Chap, photographer. Some of the many varieties of squashes at Kew Gardens IncrEdibles festival, 2013. Wikimedia Commons, CC BY-SA 4.0

New Research Guide

Science Through Pop Culture: A Research Guide

superhero dressed in red and green costume lying on the ground, a pair of yellow beams shooting straight up

Above: Carol Highsmith photographer. Fallen superhero mural art in downtown Phoenix, Arizona. 2019. Library of Congress Prints and Photographs Division.

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Online Reference Service
Science Reference Services (part of the Science, Technology and Business Division) is the principal location for research in the areas of science, technology, technical reports, and standards.
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  The Library of Congress >> Researchers
   September 16, 2021
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