Established through the Draper Fund by gift of Mrs. Henry Draper. Awarded for "an original investigation in astronomical physics, the results of which shall be made known to the public... The medal is not to be presented...more frequently than once in two years...and the investigation for which it is awarded or completed publication thereof shall have been made since the time of the last preceding award and presentation of said medal." This is interpreted to mean that a major publication resulting from the investigation should have appeared since the last presentation of the award.
William J. Borucki (2013)
For his founding concept, unflagging advocacy, and visionary leadership during the development of NASA's Kepler mission, which has uncovered myriad planets and solar systems with unforeseen and surprising properties.
Neil Gehrels (2009)
For his pioneering contributions to gamma ray astronomy. His leadership of the Compton Gamma Ray Observatory and the Swift Mission has led to new insights into the extreme physics of active galactic nuclei and gamma ray bursts.
Charles L. Bennett (2005)
For his contribution to the precise determination of the age, composition, and curvature of the universe through his leadership of NASA's WMAP (Wilkinson Microwave Anisotropy Probe) cosmic microwave background mission.
R. Paul Butler and Geoffrey W. Marcy (2001)
For their pioneering investigations of planets orbiting other stars via high-precision radial velocities. They have proved that many other planetary systems exist in the universe.
Bohdan Paczynski (1997)
For his epochal contributions toward understanding gamma-ray bursts, the evolution of binary stars, and especially the gravitational lensing and microlensing of light from distant objects.
Ralph A. Alpher and Robert Herman (1993)
For their insight and skill in developing a physical model of the evolution of the universe and in predicting the existence of a microwave background radiation years before this radiation was serendipitously discovered; through this work they were participants in one of the major intellectual achievements of the twentieth century.
Riccardo Giovanelli and Martha P. Haynes (1989)
For the first three-dimensional view of some of the remarkable large-scale filamentary structures of our visible universe.
Joseph H. Taylor, Jr. (1985)
For his pioneering studies of pulsars, including the fundamental measurements of orbit perturbations by gravitational radiation and other general relativistic effects.
W. W. Morgan (1980)
For his pioneering researches in spectral classification, leading to a new standard of accuracy in our knowledge of the distances of the stars and the structure of our galaxy.
Arno A. Penzias and Robert W. Wilson (1977)
For their discovery of the cosmic microwave radiation (a remnant of the very early universe), and their leading role in the discovery of interstellar molecules.
Lyman Spitzer, Jr. (1974)
For his vision and distinguished achievements in space astronomy and for his many outstanding contributions to the physics of the plasmas on earth and in the interstellar medium.
S. Chandrasekhar (1971)
For his leadership in, and major contributions to, the field of astrophysics.
Bengt Edlen (1968)
In recognition of his fruitful researches in astronomical physics, and particularly for his part in the discovery and proof of extremely high temperatures in the sun's corona.
Martin Ryle (1965)
For the development of a novel radio-telescopic equipment which made it possible to determine accurately positions of the numerous weak radio sources in the sky.
Richard Tousey (1963)
For his achievements in solar spectroscopy.
Martin Schwarzschild (1960)
For his book Structure and Evolution of the Stars and two papers, "On the Maximum Mass of Stable Stars" and "Evolution of very Massive Stars," which are outstanding contributions in the field of stellar evolution.
Horace W. Babcock (1957)
For his original and outstanding work leading to the discovery of magnetic fields in stars and also the general magnetic field of the sun.
Hendrik C. van de Hulst (1955)
Bernard F. Lyot (1951)
For his contributions to solar physics. The coronograph, invented by Lyot, has made possible continuous observation of the inner corona on all clear days at any suitable location.
Otto Struve (1949)
For his contributions to astronomical physics.
H. A. Bethe (1947)
In recognition of his contributions to astronomical physics, more particularly his researches on the generation of energy in the sun and stars.
Paul W. Merrill (1945)
In recognition of his many important contributions to astronomical physics, in particular those relating to his researches in stellar spectroscopy.
Ira S. Bowen (1942)
In recognition of his contributions to astronomical physics, more especially his researches on the spectra and chemical composition of gaseous nebulae.
Robert W. Wood (1940)
In recognition of his contributions to astronomical physics, more especially his pioneering work upon resonance spectra, his use of color filters in astronomical photography, and his development of methods for concentrating to a high degree the light from diffraction gratings in desired orders and regions of the spectrum.
Charles E. Mees (1936)
For his fruitful investigations in photographic process which have given emulsions sensitive to red and infrared of the spectrum and made possible great advance in knowledge of this highly important region of the radiant energy of stars.
John S. Plaskett (1934)
For his able and consistent labors in stellar radial velocities, and related studies energetically pursued for nearly 30 years.
V. M. Slipher (1932)
For his spectroscopic researches.
Annie Jump Cannon (1931)
In recognition of her astronomical work, in particular for cataloging the spectra of stars.
William H. Wright (1928)
For his researches on nebulae, new stars, and planetary atmospheres.
Harlow Shapley (1926)
For his contributions to astronomical science.
Arthur S. Eddington (1924)
For his contribution to knowledge of physical conditions existing within the stars, and for his constructive interpretation of the Einstein theory of the relativity as applied to astronomical problems.
Henry N. Russell (1922)
For his remarkably valuable contributions to knowledge of the order of stellar evolution.
Pieter Zeeman (1921)
For his discovery of the so-called Zeeman effect and for its application on magneto-optics.
Alfred Fowler (1920)
For his researches in celestial and laboratory spectroscopy, which have led to a valuable increase of our knowledge of sun spots, comets, and the stars--especially of red stars of Secchi's Type III.
Charles Fabry (1919)
In recognition of his researches in physics and astronomy, chiefly by means of interferometers.
Walter S. Adams (1918)
For discovering and developing a method of determining the distances of the stars by means of a spectrograph.
A. A. Michelson (1916)
For his numerous and important contributions to spectroscopy and astronomical physics.
Joel Stebbins (1915)
In recognition of his work on application of the selenium cell to stellar photometry.
Henry Deslandres (1913)
For his researches in solar and stellar physics.
Charles G. Abbot (1910)
For his researches on the infrared region of the solar spectrum and his accurate measurements, by improved devices, of the solar "constant" of radiation.
William W. Campbell (1906)
For his observations and researches relating to the motions of stars in the line of sight, his improvements in the methods of measuring such motions, his discussions of conclusions to be drawn from them, and the organization of work in this field in the southern hemisphere.
George Ellery Hale (1904)
For investigations of solar phenomena, studies of stellar spectra, editing the Astrophysical Journal, and the direction of the Yerkes Observatory.
William Huggins (1901)
For his investigations in astronomical physics.
J. E. Keeler (1899)
For his researches in spectroscopic astronomy.
Hermann K. Vogel (1893)
For spectroscopic observations upon the motion of stars in the line of sight, and other kindred researches.
Henry A. Rowland (1890)
For his researches on the solar spectrum, as well as for his investigations in astronomical physics.
Edward C. Pickering (1888)
For his work in stellar photometry, stellar photography, and stellar spectrum photography.
Samuel P. Langley (1886)
For numerous investigations of a high order of merit in solar physics, and especially in the domain of radiant energy.