earth – Page 4 – National Radio Astronomy Observatory

Why is the Earth Less Cratered than the Moon?

Even though the Earth and the Moon have been bombarded by the same flux of impacting objects, the evidence…

The fact that we have seasons on Earth tells us that our planet does not rotate on its axis…

Hello Oscar, Eratosthenes actually measured the length of the shadow of a tall building in Alexandria when the Sun…

Question: When will the temperature be unbearable here on Earth due to the Sun’s increasing size? — Charlie Answer:…

Question: Do stars seem to move in the night sky because of the Earth’s rotation? — Selena Answer: Exactly. …

Question: How many earths can fit in one galaxy and if the earth were about the size of galaxy…

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.
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