Donald B. Campbell is an Australian-born astronomer and Professor of Astronomy at

Cornell University Cornell University is a private statutory land-grant research university based in Ithaca, New York. It is a member of the Ivy League. Founded in 1865 by Ezra Cornell and Andrew Dickson White, Cornell was founded with the intention to teach an ...

. Prior to joining the Cornell faculty he was Director of the

Arecibo Observatory The Arecibo Observatory, also known as the National Astronomy and Ionosphere Center (NAIC) and formerly known as the Arecibo Ionosphere Observatory, is an observatory in Barrio Esperanza, Arecibo, Puerto Rico owned by the US National Science F ...

in Puerto Rico for seven years. Campbell's research work is in the general area of planetary studies with a concentration on the radio-wavelength-scattering properties of planets, planetary satellites, and small bodies. His work includes studies of

Venus Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never fa ...

, the

Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...

, the

Galilean satellites The Galilean moons (), or Galilean satellites, are the four largest moons of Jupiter: Io, Europa, Ganymede, and Callisto. They were first seen by Galileo Galilei in December 1609 or January 1610, and recognized by him as satellites of Jupiter ...

of Jupiter,

Titan Titan most often refers to: * Titan (moon), the largest moon of Saturn * Titans, a race of deities in Greek mythology Titan or Titans may also refer to: Arts and entertainment Fictional entities Fictional locations * Titan in fiction, fictiona ...

, as well as comets and asteroids. Campbell observed

near-Earth asteroid A near-Earth object (NEO) is any small Solar System body whose orbit brings it into proximity with Earth. By convention, a Solar System body is a NEO if its closest approach to the Sun (perihelion) is less than 1.3 astronomical units (AU). ...

433 Eros Eros (minor planet designation: (433) Eros), provisional designation is a stony asteroid of the Amor group and the first discovered and second-largest near-Earth object with an elongated shape and a mean diameter of approximately . Visi ...

, which was the first asteroid detected by the

radar system.

Honors and awards

NASA Exceptional Scientific Achievement Medal The NASA Exceptional Scientific Achievement Medal (abbreviated ESAM) was established by NASA on September 15, 1961, when the original ESM was divided into three separate awards. Under the current guidelines, the ESAM is awarded for unusually sign ...

(1984) * Fellow of the

American Association for the Advancement of Science The American Association for the Advancement of Science (AAAS) is an American international non-profit organization with the stated goals of promoting cooperation among scientists, defending scientific freedom, encouraging scientific respons ...

(2003) * The asteroid 4553 is named in his honor

References

External links

Donald Campbell's web page at Cornell University

Campbell's 2007 testimony before the U.S. House Committee on Science and Technology Subcommittee on Space and Aeronautics: "Asteroid Threat"

{{DEFAULTSORT:Campbell, Donald B. Living people 21st-century Australian astronomers Australian astrophysicists Cornell University faculty 20th-century Australian astronomers Planetary scientists Year of birth missing (living people) People associated with radar