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Ronald Greeley

Ronald Greeley is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Ronald Greeley rather than just read about it. In short: Ronald Greeley (August 25, 1939 – October 27, 2011) was a Regents' Professor in the School of Earth and Space Exploration (SESE) at Arizona State University (ASU), the Director of the NASA-ASU Regional Planetary Image Facility (RPIF), and Principal Investigator of the Planetary Aeolian Laboratory at NASA-Ames Research Center. He was involved with lunar and planetary studies since 1967 and most recently focused his r…

Ronald Greeley — main illustration
Ronald Greeley — illustration

Key takeaways

  • Ronald Greeley belongs to astronomy; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Ronald Greeley to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Ronald Greeley from memory before moving on to harder problems.

Reference excerpt

Ronald Greeley (August 25, 1939 – October 27, 2011) was a Regents' Professor in the School of Earth and Space Exploration (SESE) at Arizona State University (ASU), the Director of the NASA-ASU Regional Planetary Image Facility (RPIF), and Principal Investigator of the Planetary Aeolian Laboratory at NASA-Ames Research Center. He was involved with lunar and planetary studies since 1967 and most recently focused his research on understanding planetary surface processes and geologic histories.

Education Greeley earned his B.S. degree in Geology in 1962 and his M.S. degree in geology in 1963 from Mississippi State University and earned his Ph.D. in geology from the University of Missouri at Rolla in 1966.

Career After receiving his Ph.D. in geology in 1966, Greeley worked for Standard Oil Company of California. Through his military service, he was assigned to NASA's Ames Research Center in 1967 where he worked in a civilian capacity in preparation for the Apollo missions to the Moon. He remained at NASA to conduct research in planetary geology. With the results of the planetary missions in the early 1970s, attention shifted to Mars and research on volcanism and aeolian processes through the analysis of Mariner 6, 7, and 9 data. He became a science team member on the Mars Viking mission from 1976 through 1980. In 1977, Greeley joined the faculty at Arizona State University with a joint professorship in Geology and the Center for Meteorite Studies. His latest research focused on the wind processes on Earth, Mars, Venus, and Titan, field studies of basaltic volcanism, and photogeological mapping of the planets and satellites including Europa. He was also a science team member on the Mars Exploration Rover program and the European Space Agency's Mars Express mission. Greeley served on various NASA and National Academy of Sciences panels to assess space science and planetary geology activities. He chaired the NASA Planetary Geology and Geophysics Management Operations Working Group, the National Academy of Sciences Committee on Lunar and Planetary Exploration, and the NASA Mars Exploration Program Analysis Group. He was co-chair of the NASA Science Definition Team for the Europa flagship mission, then the Planetary Science Subcommittee of the NASA Advisory Council and served in that capacity until his death in 2011. Over the course of his career, Greeley wrote or co-wrote more than 400 papers and 16 books.

Awards and honors

Greeley received a number of awards and honors during his career, including the G. K. Gilbert Award presented by the Planetary Geology Division of the Geological Society of America in 1997, and being named a Fellow of the American Geophysical Union in 2007 and of the American Association for the Advancement of Science in 2008. At Arizona State University, he received a Distinguished Faculty Award in 2004 and was the recipient of the Best Field Trip of the Year award at the Arizona State University School of Earth and Space Exploration in 2007. Greeley was also the recipient of numerous NASA individual, group and leadership awards. An asteroid was named 30785 Greeley in his honor in 1988. Greeley Crater, an impact crater on Mars, was named in his honor in 2015. A commemorative plate on NASA's Europa Clipper mission features a poem by the U.S. Poet Laureate Ada Limón, waveforms of the word 'water' in 103 languages, the Drake equation, and a portrait of Ron Greeley.

Selected works Geology on the Moon, ISBN 978-0-8510-9540-0 (1977) Earthlike Planets: Surfaces of Mercury, Venus, Earth, Moon, Mars, ISBN 978-0-7167-1148-3 (co-author, 1981) Wind as a Geological Process: On Earth, Mars, Venus and Titan, ISBN 978-0-5213-5962-7 (1987) Planetary Landscapes, ISBN 978-0-4120-5181-4 (1994) The Compact NASA Atlas of the Solar System, ISBN 978-0-5218-0633-6 (2002) 21st Century Astronomy, ISBN 978-0-3939-2443-5 (co-author, 2006) Planetary Mapping, ISBN 978-0-5213-0774-1 (editor, 2007) Introduction to Planetary Geomorphology, ISBN 978-0-5218-6711-5 (2013)

References

External links Ronald Greeley’s Resume JPL Small-Body Database Browser on 30785 Greeley In Memoriam: Ron Greeley, NASA Astrobiology

Illustrations

Ronald Greeley illustration
Ronald Greeley: Commemorative plate on Europa Clipper
Commemorative plate on Europa Clipper

Worked examples

Example 1 — a first encounter with Ronald Greeley

Start with the simplest possible case. Write down what Ronald Greeley claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Ronald Greeley before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Ronald Greeley ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Ronald Greeley

In research
Ronald Greeley appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Ronald Greeley in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Ronald Greeley is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1939 births, 2011 deaths, Fellows of the American Geophysical Union, so understanding it makes those chapters shorter.
In everyday life
Look for Ronald Greeley outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Ronald Greeley in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Ronald Greeley means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Ronald Greeley out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ronald Greeley in simple terms?

Ronald Greeley (August 25, 1939 – October 27, 2011) was a Regents' Professor in the School of Earth and Space Exploration (SESE) at Arizona State University (ASU), the Director of the NASA-ASU Regional Planetary Image Facility (RPIF), and Principal Investigator of the Planetary Aeolian Laboratory a…

Why does Ronald Greeley matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Ronald Greeley?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Ronald Greeley.

Tags

  • 1939 births
  • 2011 deaths
  • Fellows of the American Geophysical Union
  • Mississippi State University alumni
  • Missouri University of Science and Technology alumni
  • Planetary scientists

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