Telescopes – Page 18 – National Radio Astronomy Observatory

How Far Away Could We See An Alien Civilization Transmitting a Powerful Radio Signal in Our Direction?

Question: If the most powerful transmitter currently used on Earth was used by an alien civilization, what is the…

Question: How can you measure the mass of a black hole with radio waves? What is the mass of…

Question: Why do you need so many radio telescopes? Do they all receive exactly the same frequency? How are…

Question: How does a single-dish telescope, such as Green Bank, produce images–at least images of more than one pixel?…

Question: You have loads of terrestrial interference, so how do you know the signals you receive are extra terrestrial?…

Question: I would like to know or find out if you have any information on Antarctic radio telescope/observatories programs…

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.