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Seminars for Scientists

2015 Spring Schedule

This page is for the LASP Science Seminars Spring 2015 Series. See upcoming talks listed below. We still have open slots and are actively recruiting new speakers. If you or a colleague would like to give a seminar this fall, please contact the Seminar Organizer Mikki Osterloo (firstname.lastname at lasp.colorado.edu). LASP seminars are held every Thursday at 4:00 PM in the SPSC building, generally in room W120. Refreshments are served at 3:45. All LASP science seminars are open to visitors and our colleagues in other departments.


Current Schedule:


Current Schedule (expanded):

1/15/2015 Seminar – Subsurface Imaging with SHARAD and Implications for the Recent Climate History of Mars

Speaker:   Than Putzig (SwRI)
Date & Time:   01/15 ,  4:00 PM Location: SPSC W120
Abstract:  

In the fifty years since the launch of Mariner 4, an armada of missions with progressively more sophisticated instrumentation has transformed our view of Mars, revealing a planet of outsized features with a complex geologic history and extraordinary climatological variations. Despite the wealth of observations, knowledge of the interior has been largely limited to inferences […]

1/16/2015 Seminar – Variational Integrators in Plasma Physics; Sewing the Geometric Fabric of Physics into Numerical Models

Speaker:   C Leland Ellison (Princeton Univ.)
Date & Time:   1/16 ,  1:00 PM Location: SPSC W120
Abstract:  

The behavior exhibited by dynamical systems is strongly influenced by the presence or absence of conserved quantities. When numerically modeling these systems, obtaining the correct long-term qualitative behavior requires retaining conservation laws in the numerical update rule. One method for constructing conservative numerical models is to derive the algorithm from a variational principle discretely analogous […]

1/22/2015 Seminar – Chemistry and Spectroscopy of Thermospheric Nitric Oxide and the Legacy of Charles A. Barth

Speaker:   Justin Yonker (NCAR)
Date & Time:   1/22 ,  4:00 PM Location: SPSC W120
Abstract:  

Though often considered a minor species, nitric oxide (NO) plays several key roles in the thermosphere.  It terminates the ion-neutral chemistry due to its low ionization potential.  Its long lifetime enables it to be transported to the middle atmosphere where it will catalytically destroy ozone.  And as the primary heteronuclear species, infrared radiation from vibrationally […]

1/29/2015 Seminar- Understanding Electron-Hole Instabilities in the Lunar Plasma Wake

Speaker:   Ian Hutchinson (MIT)
Date & Time:   1/29 ,  4:00 PM Location: SPSC W120
Abstract:  

The moon, like many objects in flowing plasma, gives rise to a rarefied quasineutral plasma wake that attracts ions along the magnetic field giving rise to beam-like ion distributions, known theoretically since the 1960s, and observed by satelites. Recent particle in cell simulations of the wake at realistic mass ratio show ion-disrupting instabilities grow in […]

2/5/2015 Seminar- Investigating our Heliospheric Environment: IBEX Observations

Speaker:   Harald Kucharek (Univ. of New Hampshire)
Date & Time:   2/5 ,  4:00 PM Location: SPSC W120
Abstract:  

The Interstellar Boundary Explorer (IBEX) launched in Oct. 2008 and the observations by the Voyager spacecraft provided truly remarkable advances in heliospheric research. While Voyager provided in situ measurements of the plasma conditions on leaving our solar system, IBEX imaged the interactions occurring at the boundary of our heliosphere in all directions in space by […]

2/6/2015 Seminar – Rosetta Lander – Philae: First Landing and Operations on a Comet

Speaker:   Stephan Ulamec (DLR)
Date & Time:   2/6 ,  10:00 AM Location: SPSC W120
Abstract:  

Philae is a comet Lander, part of Rosetta which is a Cornerstone Mission of the ESA Horizon 2000 programme.  In August 2014 Rosetta did rendezvous with comet 67P/Churyumov-Gerasimenko (CG) after a 10 year cruise.  Both its nucleus and coma have been studied allowing the selection of a landing site for Philae. Philae was separated from […]

2/19/2015 Seminar- Did Mars ever have a lively underground scene? New perspectives on the habitability of subsurface environments on Mars and beyond

Speaker:   Joe Michalski (PSI)
Date & Time:   2/19 ,  4:00 PM Location: SPSC W120
Abstract:  

By the time eukaryotic life or photosynthesis evolved on Earth, the Martian surface had become extremely inhospitable – cold, hyperarid, acidic, oxidizing and bathed in UV radiation. But, the subsurface of Mars could potentially have contained a vast microbial biosphere. Data from recent missions have revealed spectacular views of materials exhumed from the subsurface by […]

2/26/2015 Seminar – Space Weathering on Volatile-Rich Asteroids; Or How Rocks Can Make Glass, Iron, and Life

Speaker:   Dan Britt (Univ. of Central Florida)
Date & Time:   2/26 ,  4:00 PM Location: LSTB A299
Abstract:  

Space weathering refers to the alterations suffered by solid materials when directly exposed (i.e. no atmosphere) to the space environment. The classic example is the weathering of the lunar regolith in which common rock-forming minerals decompose into glassy aggregates with nanophase iron. The lunar nanophase iron produces a characteristic spectral red slope. But how do […]

3/5/2015 Seminar- Solar and Stellar Winds: Progress, Puzzles, and Prospects

Speaker:   Steven Cranmer (LASP)
Date & Time:   3/5 ,  4:00 PM Location: SPSC W120
Abstract:  

All stars are believed to possess expanding outer atmospheres known as stellar winds.  The continual evaporation of gas from stars has a significant impact on stellar and planetary evolution, and also on the larger-scale evolution of gas and dust in galaxies.  Despite more than a half-century of study, though, the basic mechanisms responsible for producing […]

3/12/2015 Seminar- TBD

Speaker:   Tim Cassidy (LASP)
Date & Time:   3/12 ,  4:00 PM Location: SPSC W120
Abstract:  

TBD

3/19/2015 Seminar- TBD

Speaker:   Hironobu Iwabuchi (Tohoku Univ.)
Date & Time:   3/19 ,  4:00 PM Location: SPSC W120
Abstract:  

TBD

3/24/2015 Seminar- TBD

Speaker:   Murthy Gudipati (JPL)
Date & Time:   3/24 ,  4:00 PM Location: SPSC W120
Abstract:  

TBD

3/26/2015 Seminar- TBD

Speaker:   Brian Hynek (LASP)
Date & Time:   3/26 ,  3:30 PM Location: SPSC W120
Abstract:  

TBD

4/23/2015 Seminar- TBD

Speaker:   Bruce Jakosky (LASP)
Date & Time:   4/23 ,  4:00 PM Location: SPSC W120
Abstract:  

TBD

4/30/2015 Seminar- TBD

Speaker:   Dr. James Weygand (UCLA)
Date & Time:   4/30 ,  4:00 PM Location: SPSC W120
Abstract:  

TBD

5/21/2015 Seminar- TBD

Speaker:   Jim Fuller (Caltech)
Date & Time:   5/21 ,  4:00 PM Location: SPSC W120
Abstract:  

TBD

5/28/2015 Seminar- TBD

Speaker:   Dallas Masters (Univ. of Colorado)
Date & Time:   5/28 ,  4:00 PM Location: SPSC W120
Abstract:  

TBD

Past Seminars