Crooker was born in Chicago in 1944. Her father, Michael Uss, a Lithuanian who emigrated to America as a child, was a foreman at the freight yards of the Chicago & Northwestern Railroad, and her mother, Helen Narovec, was a housewife.
Crooker has published 207 peer-reviewed articles (as of 8 October 2019)[4] across a range of topics within space physics. Her early career was as a postdoctoral researcher at Cornell University and then the Massachusetts Institute of Technology in the 1970s. There, together with Joan Feynman in their seminal Nature paper,[5] she was one of the first physicists to use geomagnetic data as a way to reconstruct solar activity prior to the space age.[6] Crooker then developed the concept of anti-parallel merging of magnetic field lines in Earth's magnetosphere published in Journal of Geophysical Research in 1979.[7]
In 1990, she returned to UCLA as an adjunct professor before making her final move to Boston University as a research professor in 1994.[2] Around this time, Crooker switched focus from the magnetosphere to the heliosphere, in particular the interplanetary manifestations of coronal mass ejections. In 1997, she co-edited a monograph on coronal mass ejections.[8] In 2002, she coined the term "interchange reconnection" for describing the dynamic process by which heliospheric magnetic flux introduced by coronal mass ejections is subsequently removed,[9][10] a term which has been comprehensively adopted in the field.
Crooker was president of the American Geophysical Union (AGU) Space Physics & Aeronomy Section from 2004 to 2006.[11][12] She is a fellow of the American Geophysical Union,[13] where the fellowship program recognizes AGU members who have made exceptional contributions to Earth and space science through a breakthrough, discovery, or innovation in their field.[14] She also received the prestigious Eugene Parker Lecture award from the AGU in 2013, only the third woman to do so.[15]
Chair, AGU Awards Committee for Solar-Planetary Relations Section (1988-1990)[22]
Awards and honors
The Eugene Parker Lecture is presented two out of every three years to a space scientist who has made significant contributions to the fields of solar and heliospheric science by the American Geophysical Union.[15] Crooker received this honor in 2013.[15]
President of the AGU Space Physics & Aeronomy Section (2004 to 2006) [12]
Member of the Solar Heliospheric and Interplanetary Environment (SHINE) Steering Committee (1995-2002)[23]
Solar Heliospheric Secretary for Space Physics & Aeronomy Section of AGU (2000-2002)
Fellow of the American Geophysical Union (2000) [24][13]
Member of the NASA Magnetospheric Management Operations Working Group (1995-6)[25]
^Crooker, N. U.; Feynman, J.; Gosling, J. T. (1977-05-01). "On the high correlation between long-term averages of solar wind speed and geomagnetic activity". Journal of Geophysical Research. 82 (13): 1933–1937. Bibcode:1977JGR....82.1933C. doi:10.1029/JA082i013p01933.
^"Eos, Transactions, American Geophysical Union Volume 90, Number 51, 22 December 2009". Eos, Transactions American Geophysical Union. 90 (51): n/a. 2009-12-22. doi:10.1029/eost2009EO51. ISSN2324-9250.