Timothy Fuller-Rowell and Kristine Larson, both from the University of Colorado Boulder, have been elected fellows of the American Geophysical Union.
Nominated fellows must have "attained acknowledged eminence in the Earth and space sciences" and have made exceptional scientific contributions to their field.
Fuller-Rowell is a senior research associate at the Cooperative Institute for Research in Environmental Science. His current research projects include studying the ionosphere, which is part of the upper atmosphere, and dynamics of the thermosphere, the largest layer of the atmosphere.
Larson is a professor of aerospace engineering sciences whose work focuses on astrodynamics and satellite navigation.
Both will be honored at the union's December meeting in San Francisco.