Galaxies – Page 3 – National Radio Astronomy Observatory

Can Black Holes Produce Galaxies?

The bursts observed from black holes tend to be due to energy emitted during an accretion event, where the…

With even the larger optical telescopes that astronomers have at their disposal, one cannot tell the difference between a…

In fact, the individual properties of stars in our galaxy and other galaxies are pretty well understood and found…

Your estimate for the average distance between stars is reasonable. Your estimate for the average distance between galaxies is…

The list of visualizations that you provide are some of the best descriptions of the expansion of the universe. …

It is rare for two galaxies to lie exactly along the same line-of-sight, so that the one closer to…

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.