Skip to content
  • For Scientists arrow_outward
NSF Logo Icon
NRAO Logo
  • News
  • Gallery
  • Telescopes
    • VLA
    • ALMA
    • VLBA
    • GBT
    • ngVLA
  • Tech
    • CDL
    • Spectrum Management
    • ngRADAR
    • VLASS
  • Visit Us
    • Visit VLA
    • Visit ALMA
    • Visit GBO
  • Learn
    • What is Radio Astronomy?
    • Black Holes
    • Exoplanets
    • Pulsars Astronomy
    • Eclipse Basics
    • Blogs
    • Outreach Programs & Events
  • Explore
    • Cosmic Coloring Compositor
    • Interferometry Explained
    • NRAO Mission Control
  • Join & Give

Radio Astronomy

Select : asteroid collisionasteroidsastronomical distance scalesatomsbig bangblack holesbright lights in the skybrown dwarfcareerscelestial eventschecker cabscometsconstellationscosmic distancescosmic microwave backgroundcosmic rayscosmologydark energydark matterdwarf planeteartheclipseeclipticeducationexoplanetsexpansion of the universegalaxiesgeneral relativitygravitational lensgravity wavesGreat Red SpotHoaxesHubble Space Telescope (HST)Interferometerinterferometryinterstellar moleculesionosphereJupitermagnetarsmarsmeteorsMH370milky wayMilky Way Galaxymoleculesmoonmoonsneutron starneutron starsNibirunight skyparallaxphysicsplanetsplutoproperties of lightPtolemypulsarsquasarsradar astronomyRadio Astronomyradio frequency interferenceradio interferometersradio recombination line emissionRadio TelescopeSatellite DishSchwarzschild Radiusscientific methodsearch for extraterrestrial intelligenceSETIsolar systemspace probesspacecraftstar formationstarssunsupernovasupernova remnantssupernovaetelescopestime dilationTrans Neptunian Objectstwin paradoxunexplained celestial observationsVenusVery Large ArrayVery Long Baseline Array (VLBA)Voyager 1weather

A Question About the CLEAN Algorithm

Question: What is the difference between clean on image domain and clean on visibility domain? I heard that it…

How Does Radio Astronomy Aid in the Search for Extraterrestrial Life?

Question: Hi! I’m a screenwriting student and I’m currently working on developing a TV series concept that features radio…

What is Meant by “Time on Source”?

Question: what is the meaning of “Time on source”?  I noticed that lower RMS noise  demands  longer “Time on…

Is CLEAN Still the State-of-the-Art in Deconvolution Algorithms in Astronomical Imaging?

Question: What is the state of the art of the deconvolution algorithm in astronomy imaging? As we known, clean…

Is the Conversion from Visibility to Dirty Image Reversible?

Question: Hi, I was wondering the procedure of convert Visibility to Dirty image is reversible in reality? For example,…

Description of the CLEAN Algorithm

Question: I want to learn something about astronomy imaging and CLEAN algorithm is commonly used. Could you please tell…

Posts navigation

  • « Previous
  • 1
  • …
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • …
  • 31
  • Next »

Connect with NRAO

mail
Tweets by TheNRAO
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.
  • News
  • Gallery
  • Telescopes
    • VLA
    • ALMA
    • VLBA
    • GBT
    • ngVLA
  • Tech
    • CDL
    • Spectrum Management
    • ngRADAR
    • VLASS
  • Visit Us
    • Visit VLA
    • Visit ALMA
    • Visit GBO
  • Learn
    • What is Radio Astronomy?
    • Black Holes
    • Exoplanets
    • Pulsars Astronomy
    • Eclipse Basics
    • Blogs
    • Outreach Programs & Events
  • Explore
    • Cosmic Coloring Compositor
    • Interferometry Explained
    • NRAO Mission Control
  • Join & Give
  • For Scientists
  • About NRAO
  • Ask an Astronomer
  • Historical Archives
  • Media Use
  • Social Media Policy
  • NRAO Library
  • Central Development Lab
  • Technology Transfer
  • Employee Services
  • Visitor Code of Conduct
  • Careers

Contact Us

NRAO Headquarters
520 Edgemont Road
Charlottesville, VA 22903
434-296-0211
More Information Here

© 2025 The National Radio Astronomy Observatory