Giant in the Cage

Home
Gallery
Giant in the Cage

At the Green Bank Telescope, astronomers can choose a variety of receivers to use to observe the radio skies. One of them can only fit up at the prime focus of the telescope. The cone at the left is the funnel entry into the feed of the receiver which is enclosed in a cage suspended on the end of the GBT’s 200-foot feed arms. It receives the radio waves bounced up here by the 100-meter dish of the telescope below.

Credit: B. Saxton, NRAO/AUI/NSF

Facebook

Twitter

GBT Radio Telescopes and Technology

Download Image

Hi-Res Full-Size	1920 x 1440	2 MB
Screensize File	1024 x 768

Media Use Policy

Giant in the Cage

Other Things You Might Like

More GBT Images & Videos

The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
	Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.
	The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 "to promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defense..."
	AUI collaborates with the scientific community and research sponsors to plan, build, and operate cutting-edge facilities. We cultivate excellence, deliver value, enhance education, and engage the public.