Visit
- - - 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.
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
    - Radio Astronomer For a Day
  - - Try it at home
    - Field Trips (Day visits)
  - - Outreach
    - Education Resources
  - - Scout Weekends
Science
- - - Science at the Green Bank Observatory
      
      Learn about our scientific programs, meetings and workshops, our staff, and more
Users Portal
- - - Users Portal Page
      
      In this section observers will find information for using our telescopes.
Media
- - - Media and Media Relations
      
      Find news, updates, and information for the media – including information on media visits and public photography on site.
About
- - - About the Green Bank Observatory
      
      Learn more about our history and our facility in the sections below.

Author: Green Bank Observatory

Breakthrough Listen, NSF Green Bank Telescope Probe Galactic Heart for Hidden Pulsars

Astronomers discover possible millisecond pulsar, challenging ideas about how many neutron stars lurk around the Milky Way’s central black hole.

February 9, 2026
26B Semester

2026B Call for Proposals The Green Bank Observatory (GBO) invites the scientific community to submit proposals for the 2026B Semester. Submission Deadline:Wednesday, 4 February 2026, at 17:00 EST (22:00 UTC).

January 7, 2026
Change in balance command

We have released a change in the behavior of the Balance() command on the GBT.

November 3, 2025
NSF’s ongoing technical coordination with satellite constellation operators

May 15, 2025
Contents of the Fermi Bubbles and Related Topics

Contents of the Fermi Bubbles and Related Topics The Green Bank Observatory is hosting a workshop May 5th to May 7th 2025 on the Fermi Bubbles in honor of Jay Lockman’s 50+ years of service to NRAO/GBO. The Fermi Bubbles are a striking signature of the large-scale, multi-phase galactic outflow originating from the center of…

May 5, 2025
GBT Surveys of the 21-cm Sky

ALPACA, the Advanced L-band Phased Array Camera for Astronomy, is a phased-array receiver capable of providing high sensitivity observations simultaneously for 40 beams on the GBT in the 1-2 GHz band.

April 25, 2025
NSF Green Bank Telescope Gets a New Coat of Protection

Vital repainting project will extend lifespan of world’s largest fully steerable radio telescope The U.S. National Science Foundation Green Bank Observatory (NSF GBO) is embarking on a crucial maintenance project to protect the structural integrity of the NSF Green Bank Telescope (NSF GBT), the world’s largest fully steerable radio telescope. The NSF GBT has been…

April 7, 2025
Astrobiology Teachers Workshop

Join us for a 5-day Astrobiology Workshop geared towards Middle and High School Science Teachers, to be held at the U.S. National Science Foundation Green Bank Observatory! June 29 – July 4, 2025 During this conference, teachers will: Every day, you will collaborate with other teachers, engage in scientific lectures, participate in fun hands-on activities,…

March 10, 2025