Radio Astronomy – Page 20 – National Radio Astronomy Observatory

Radio Caustics and Cusps in the Earth’s Ionosphere

Question: Hi! My question is about ionospheric caustics (IC). In dynamic spectra of several radio telescopes during daily solar…

Question: I am a high school teacher and three of my students are trying to build a radio telescope…

Question: What do the VLAs actually “see” or “hear?” A recent report states Apollo 10 astronauts “heard” strange music…

Question: A visit to your Very Large Array prompted the question, “Can we focus radio waves much as we…

Question: If 20MHz waves are ‘bounced’ by the ionosphere, how is it that Karl Jansky detected 20.5MHz waves coming…

Question: Is there a place that posts daily images of the Sun in a radio frequency, perhaps 21 cm,…

The National Radio Astronomy Observatory is a facility of the U.S. 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 U.S. 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.