Green Bank Observatory
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        • Visit the Green Bank Science Center

          Everything you need to know about visiting Green Bank including our tours, the Exhibit Hall, our Gift Shop, and the Starlight Café.


        • Green Bank Science Center
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  • Education
        • Educational Programs

          In this section you will discover our educational offerings here at Green Bank Observatory. Be part of the science!


        • Students forming a human pyramid in front of the 40 Foot Educational Telescope
        • Student Research
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        • Try it at home
        • Field Trips (Day visits)
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  • Science
        • Science at the Green Bank Observatory

          Learn about our scientific programs, meetings and workshops, our staff, and more


        • Science News
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  • Users Portal
        • Users Portal Page

          In this section observers will find information for using our telescopes.


        • 20 Meter
        • Green Bank Telescope at the Green Bank Observatory
        • GBT
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        • Media and Media Relations

          Find news, updates, and information for the media – including information on media visits and public photography on site.


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  • About
        • About the Green Bank Observatory

          Learn more about our history and our facility in the sections below.

        • Interference Protection
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  • Space’s Spinning Enigma: A ‘Unicorn’ Object Defies Astrophysics

    Space’s Spinning Enigma: A ‘Unicorn’ Object Defies Astrophysics

    Breakthrough collaboration between multiple telescopes reveals most unusual long-period radio transient ever found

    2025-07-17

  • Astronomers Discover Massive Molecular Cloud Hidden in Milky Way

    Astronomers Discover Massive Molecular Cloud Hidden in Milky Way

    Newly discovered Midpoint cloud offers a rare glimpse into star formation and the dynamic flow of galactic material toward the Milky Way’s center

    2025-07-16

  • Data Storage Work

    The Green Bank Observatory is in the process of expanding the storage capacity on one of our data storage machines. The work starts Monday, July 14 at 16:00 ET and will continue until all data is successfully restored. Data stored in the GBT Legacy Archive will be unavailable during this period.

    2025-07-14

  • Star Party and book talk

    Star Party and book talk

    Join us for a Book Talk and Summer Star Party with Dr. Kelsey Johnson, astrophysicist and author most recently of Into the Unknown: The Quest to Understand the Mysteries of the Cosmos. Dr. Johnson is a professor at the University of Virginia and past-president of the American Astronomical Society; her research focuses primarily on galaxy […]

    2025-07-08

  • Galactic Mystery: How “Ice Cubes” Survive in the Milky Way’s Blazing Bubbles

    Galactic Mystery: How “Ice Cubes” Survive in the Milky Way’s Blazing Bubbles

    Astronomers discover fragile hydrogen clouds surviving inside the superheated Fermi Bubbles, revealing the Milky Way’s most extreme outflows are younger and more complex than ever imagined

    2025-07-07

  • MUSTANG2 MaDCoWS Data

    The Massive and Distant Clusters of WISE Survey (MaDCoWS) is a catalog of >2000 massive galaxy clusters at z~1. The goal of this GBT observing program was to observe many of the most massive MaDCoWS clusters with MUSTANG2 in order to obtain a Sunyeav-Zeldovich Effect mass estimate. 26 MaDCoWS clusters were observed and the resulting […]

    2025-06-30

  • 26A Semester

    The National Radio Astronomy Observatory/Green Bank Observatory (NRAO/GBO) Call for Proposals for the Semester 2026A will close on Wednesday, 30 July at 22:00 UTC (5:00 P.M. ET). The Semester 2026A Proposal Call information can be viewed here.

    2025-06-25

  • Greenbrier valley archaeology: Findings at fort warwick

    Greenbrier valley archaeology: Findings at fort warwick

    Join us at the Green Bank Science Center for an evening of archaeology as Drs. Kim and Stephen McBride present the latest results from the extensive archaeological excavations recently completed at Fort Warwick, a historical site right here in Green Bank, WV! Fort Warwick was a frontier structure built in 1774 as a militia outpost, […]

    2025-06-23

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Green Bank Observatory and National Radio Astronomy Observatory are supported by the U.S. National Science Foundation and are operated by Associated Universities, Inc. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the U.S. National Science Foundation.

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