NRAO: National Radio Astronomy Observatory

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Learn & Explore

Discover the invisible Universe and the world of radio astronomy. Tour our science and visitor centers. Browse our image, video, audio galleries. Join our programs; download our activities.

The Crab Nebula, located in the constellation of Taurus, is the remnant of a supernova in 1054 AD, observed as a "guest star" by ancient Chinese astronomers. Read More

Explore Science & Technology...

...at the Green Bank Science Center in West Virginia and the Very Large Array Visitor Center in New Mexico!

Green Bank Science Center

Very Large Array Visitor Center

The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.