Physics – Page 10 – National Radio Astronomy Observatory

How Does One Accurately Locate the Source of an Astronomical Signal?

In most cases it requires high spatial resolution measurements of an object in order to accurately associate it with…

I believe that this question has been answered on the Space Exploration Stack Exchange. You can use an online…

The Andromeda and Milky Way galaxies are moving toward each other due to mutual gravitational attraction. This mutual gravity…

In fact, the magnification due to a gravitational lens is directly analogous to the magnification of objects that one…

Although it is true that the sensitivity of the human eye to different frequencies of light is consistent with…

Michael Richmond has provided an excellent description of the physics of atmospheric extinction (and refraction) on his Atmospheric Effects:…

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..."
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