Friday, November 28, 2008

NTRS: NASA Technical Reports Server

NASA Technical Reports Server (NTRS)

The NTRS is a valuable resource for students, educators, researchers, and the public for access to NASA's current and historical technical literature since it was first released in 1994. NTRS provides access to approximately 500K aerospace related citations, 90K full-text online documents, and 111K images and videos. NTRS numbers continues to grow over time as new scientific and technical information (STI) is created or funded by NASA. The type of information found in NTRS include: conference papers, images, journal articles, photos, meeting papers, movies, patents, research reports, and technical videos.

The NTRS provides access to NASA's current and historical aerospace research and engineering results. NTRS integrates three separate information collections and enables search and retrieval of information through a common interface:

  • NACA Collection: Citations and reports from the NACA Technical Report Server (TRS),, are now in NTRS. The NACA TRS site is retired and no longer in service following the consolidation of citations and reports into NTRS. The NACA collection is historical information from the NACA period lasting from 1915 to 1958.

  • NASA Collection: Citations and documents created or sponsored by NASA. The NASA collection time period starts in 1958 and continues to the present.

  • NIX Collection: Citations and images, photos, movies and videos downloaded from the NASA Image eXchange and served out through NTRS. NIX is a separate system and users can go directly to the NIX to search imagery as well as through NTRS.

NTRS provides access to many citations and an increasing number of electronic documents and images. Citations indicate if an item is available online or if it should be ordered. If the item is available from NASA, the citation will provide guidance on ordering items from the NASA Center for AeroSpace Information. If the item is not available from NASA, the citation provides a link to a list of suggested sources to order the document.

The Information found in NTRS is government information and it is unlimited, unclassified, and publicly available. Please see NASA Disclaimers, Copyright Notice, and Terms and Conditions of Use for information on how to use NASA's scientific and technical information (STI).


Search NTRS

_Term Search

Select Search Field: All; Report-Patent Number; Abstract*; Accession Number*; NASA Center*; Author Name; Document ID; Keywords; Publication Date*; Title*

[Note:] * to search NIX collection

Find Results With: All of the words; At least one of the words

Enter Search Term:

_Navigation Search_

– Collection
+ NASA Center
+ Publication Year
+ Subject
+ Availability Options
+ Item/Media Type



NTIS: National Technical Information Service

The National Technical Information Service (NTIS)[] serves as the largest central resource for government-funded scientific, technical, engineering, and business related information available today. For more than 60 years NTIS has assured businesses, universities, and the public timely access to approximately 3 million publications covering over 350 subject areas.

NTIS is located in Springfield, Virginia. It provides information dissemination of its collection of approximately 3 million U.S. Federal Government technical reports and provides dissemination services for other U.S. Federal Government agencies. NTIS provides a variety of dissemination services for other agencies with the specialized resources, systems, equipment, financial infrastructure and personnel expertise needed to produce and disseminate their information products on a large scale.


NTIS® Database

Containing over 2.0 million bibliographic records, the NTIS Database is the preeminent resource for accessing the latest research sponsored by the United States and select foreign governments. The Database represents billions of dollars in research. Contents include research reports, computer products, software, video cassettes, audio cassettes and more. The complete electronic file dates back to 1964. On average, NTIS has added over 60,000 new records per year to the Database over the past ten years. Most records include abstracts.

Subject coverage includes
  • Administration & Management

  • Aeronautics & Aerodynamics

  • Agriculture & Food

  • Astronomy & Astrophysics Energy

  • Atmospheric Sciences

  • Behavior & Society

  • Biomedical Technology& Human Factors Engineering

  • Building Industry Technology

  • Business & Economics

  • Chemistry

  • Civil Engineering

  • Combustion, Engine & Propellant

  • Communications

  • Computers, Control & Info Theory

  • Detection & Countermeasures

  • Electrotechnology

  • Energy

  • Environmental Pollution & Control

  • Government Inventions for Licensing

  • Health Care

  • Industrial & Mechanical Engineering

  • Library & Information Sciences

  • Manufacturing Technology

  • Materials Sciences

  • Mathematical Sciences

  • Medicine & Biology

  • Military Sciences

  • Missile Technology

  • Natural Resources

  • Navigation

  • Nuclear Science

  • Ocean Sciences

  • Ordnance

  • Photography

  • Physics

  • Problem Solving Information

  • Space Technology

  • Transportation

  • Urban & Regional Tech[nological] Development

  • And Much More... .

Once identified in the NTIS Database, most items are available for purchase directly from NTIS!


Search NTIS

_Quick Search_

Abstract, Author, Keyword, Title as well as by Accession Number or Product Number or All [default] fields concurrently.

_Advanced Search_

Abstract, Author, Keyword, Title as well as by Accession Number or Product Number or All fields concurrently.

[Options:] With All of the words / With the exact phrase / With at least one of the words / Exclude Words

Limit Results By Category: ALL; Administration and Management; Aeronautics; Agriculture; Astronomy; Atmospherics; Behavior and Society; Biomedical / Human Factors; Building; Business; Chemistry; Civil Engineering; Combustion; Communication; Computers; Detection; Electrotechnology; Energy; Environment; Government Inventions; Health Care; Industrial Engineering; Library and Information Sciences; Manufacturing; Materials; Mathematics; Medicine & Biology; Military; Missile Technology; Natural Resources and Earth Sciences; Navigation, Guidence, & Control; Nuclear Science & Technology; Ocean Sciences & Technology; Ordinance; Photography & Recording Devices; Physics; Space Technology; State & Local Problem Solving; Transportation; Urban Development

Limit Results By Collection: ALL; Business Collection; Computer Products; Economic Research Service; National Audiovisual Center; Office of Toxic Substances; Subscription

Limit Results By Source Agency / Select Source Agency

Sort By: Rank [default], Title, Year

[Option:] Search Audio Visual Products Only

[Display] Results: 10; 50; 100 [Default]; 200; 500

[Year(s):] 1964 > [Current]

Search Help

T-ReX: Technical Reports Experiment

The T-ReX: Technical Reports Experiment blog was formally established on November 28 2008.

T-ReX is a compilation of significant Technical Report servers / services. In addition, it will also seek to profile significant literature and news relating to Technical Reports.

When a critical mass of relevant resources is identified, significant sites and sources will be organized within a LibGuide.