Planetary Science Directorate


Upcoming SwRI Boulder Colloquia

Colloquia are normally on Tuesdays at 11:00 am in the 4th-floor conference room, except as indicated below in bold text.
Show previous colloquia

For questions or suggestions for speakers, please contact the SwRI colloquium organizers:
Hannah Kaplan, 720-208-7208 or kaplan(at)
Derek Lamb, 720-208-7207 or derek(at)
Katie Primm, 720-240-0124 or kprimm(at)
Raluca Rufu, 303-226-0879 or raluca(at)
Julien Salmon, 720-208-7203 or julien(at)
Kelsi Singer, 303-226-5910 or ksinger(at)

To be added to the SwRI Boulder Colloquia email list, please contact Kelsi Singer, ksinger(at)

Tue Oct 29, 201911:00 am Vishaal Singh Arizona State University (Mis-)Understanding Ocean Worlds: Enabling future exploration through lab work and modeling of all the things we do not know about the ice
Mon Nov 4, 201911:00 am Richard Ghail Royal Holloway, University of London The EnVision mission to Venus, Earth's mysterious twin.
Tue Nov 12, 201911:00 am Sona Hosseini Jet Propulsion Laboratory A Next Generation Miniaturized High Spectral Resolution Spatial Heterodyne Spectrometer (SHS)
Abstract: Dr. Sona Hosseini (NASA/JPL) will present on the status of her new NUV (3080 Å) miniature SHS instrument for detecting the hydroxyl OD/OH isotope ratio remotely in diffused and faint targets such as cometary tails, comae and planetary exospheres. Mapping the distribution and composition of the species responsible for the UV emissions (e.g., atoms, molecules, ionic, and neutral) is critical to understanding the structure and evolution of Solar System and planets including our own Earth-Moon system. Many planetary objects that produce UV emissions, are angularly extended low brightness targets, i.e., , solar wind charge exchange emission, solar system planetary atmospheres and exospheres, mapping atomic emission, comets, and the interplanetary medium. This presents a challenge to the observer as traditional slit-spectrographs lack the sensitivity to disperse the low photon flux into a large number of spectral resolution elements (R~100,000) and cannot detect the faint UV emission spectra from these important astronomical targets. Spatial Heterodyne Spectrometery (SHS) is a relatively novel approach for high étendue, high R spectroscopy in a compact low-cost, low-mass, low-power architecture. It uses a small aperture telescope (nor none) for UV to IR wavelengths. SHS based techniques have been making headway as an alternative to both Fabry-Perot interferometers (FPI) and Fourier-transform Spectromters (FTS), and can be made extremely compact in a reflective design with no moving parts for narrow bandpasses. Developing the SHS instrument has a wider significance to Astrophysics and Planetary science. SHS provides integrated spectra at high R, over a wide FOV in compact designs that offer the ability to make key science measurements for a variety of planetary targets. SHS could be implemented on a dedicated SmallSat or ISS that can sit and stare at its target for the long duration of time that cannot be done from the ground or on big missions. SmallSats are lower cost, faster to build, relatively easy to correct and upgrade. High R spectrometers are usually limited by the telescope aperture size and complicated optomechanical tolerances, but that’s not the case for SHS.
Tue Nov 19, 201911:00 am Alex Davis University of Colorado Boulder Applications of the Full-Two Body Problem: Constraints on Formation and Parameter Estimation of Binary Asteroids
Tue Feb 25, 202011:00 am Kathryn Steakley NASA Ames TBD Impacts
Tue Mar 3, 202011:00 am Hakeem Oluseyi NASA Headquarters TBD Science Outreach