radio astronomy


Definition of radio astronomy

: astronomy dealing with radio waves received from outside the earth's atmosphere

Keep scrolling for more

Other Words from radio astronomy

radio astronomer noun
radio astronomical adjective

Examples of radio astronomy in a Sentence

Recent Examples on the Web Technically, the far side of the moon is already being used for radio astronomy. Jennifer Leman, Popular Mechanics, "Can't Find a Quiet Spot for Your Giant Radio Telescope? Try the Moon.," 9 Apr. 2020 Two major projects now mapping the Milky Way use a technique in radio astronomy called very long baseline interferometry (VLBI). Mark J. Reid, Scientific American, "A New Map of the Milky Way," 17 Mar. 2020 That’s particularly worrisome for Tony Beasley, the director of N.R.A.O., who said that OneWeb’s impact on radio astronomy could be larger than SpaceX’s. New York Times, "OneWeb Launches 34 Satellites as Astronomers Fear Radio Chatter," 6 Feb. 2020 That limits the company’s ability to briefly switch off satellites while passing over locations with radio astronomy facilities, because customers would lose service, too. New York Times, "OneWeb Launches 34 Satellites as Astronomers Fear Radio Chatter," 6 Feb. 2020 Satellites are already interfering with radio astronomy, which studies solar activity, black holes, pulsars, star formation and the echoes of the Big Bang. Michael Byers And Aaron Boley, Twin Cities, "Byers, Boley: How Elon Musk can help save astronomy," 26 Dec. 2019 After Heidmann’s death in 2000, Maccone took up the cause of preserving the lunar farside for radio astronomy. Wired, "Alien Hunters Need the Far Side of the Moon to Stay Quiet," 15 Nov. 2019 The greatest mystery of modern radio astronomy comes down to just three letters: FRB. Yvette Cendes, Discover Magazine, "What Are FRBs? The Discovery of Mysterious Signals From the Cosmos," 7 Feb. 2019 Last year, a team led by Falcke added a radio astronomy experiment to China's Queqiao probe, which was parked near the Moon to relay signals to and from the Chang'e-4 lander on the lunar far side. Daniel Clery, Science | AAAS, "Could humanity’s return to the moon spark a new age of lunar telescopes?," 18 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radio astronomy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of radio astronomy

1948, in the meaning defined above

Keep scrolling for more

Learn More about radio astronomy

Time Traveler for radio astronomy

Time Traveler

The first known use of radio astronomy was in 1948

See more words from the same year

Statistics for radio astronomy

Cite this Entry

“Radio astronomy.” Dictionary, Merriam-Webster, Accessed 7 Aug. 2020.

More from Merriam-Webster on radio astronomy Encyclopedia article about radio astronomy

Comments on radio astronomy

What made you want to look up radio astronomy? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!