black holes – Page 4 – National Radio Astronomy Observatory

Can a Black Hole Become a Regular Object Through Evaporation?

Since the gravitational force due to an object is proportional to its mass divided by the square of the…

Any object, including light, that exists inside the event horizon of a black hole is doomed never to escape…

Newton’s law of universal gravitation is as follows: F = GMm/r^2 where F is the gravitational force (in Newtons),…

A neutron star that is left-over after a supernova is actually a remnant of the massive star which went…

I believe that the light you see returning from the black hole will be redshifted, due to the General…

As a black hole of any mass is in most cases detected due to its gravitational influence on nearby…

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.