What's hot in Saturn's Rings?

Dr. Jeff Cuzzi (NASA Ames), Dr. Mark Showalter (SETI Institute) and Dr. Stuart Pilorz (JPL/SETI Institute) are outer planets scientists working on the currently ongoing Cassini mission to Saturn. All three are experts on Ring systems, and have used the instruments of Cassini to learn more about the most dazzling Rings in our Solar System. They will address the new information that has come back to us from Cassini, the old questions that have been answered, and the new questions that have arisen in the course of this mission.

Direct detection of extrasolar planets and the Gemini Planet Imager

The next frontier in the study of extrasolar planets is direct (imaging) detection of the planets themselves. Such direct detection is sensitive to planets inaccessible to current radial-velocity surveys and allows spectral characterization of the planets, shedding light on planet formation and the structure of other solar systems. We are constructing the Gemini Planet Imager, combining advanced adaptive optics, coronagraphy, and an integral field spectrograph/polarimeter to detect and characterize giant planets and circumstellar dust disks around nearby stars.

The Advanced Studies Laboratory - A unique linkage between UCSC and NASA Ames

Dr. Rose Grymes is the inaugural director of the Advanced Studies Laboratory (ASL), a NASA Ames and UC Santa Cruz strategic partnership created last year and currently based in Building 239 of NASA Ames. The ASL is developing a shared-use, open-access environment and engages projects as Affiliates which join the ASL consortium. The current membership, eight Affiliates, has focal interests linking advanced materials science and technology to planetary exploration, particularly astrobiology.

Life in a cold and dry planet - Lessons for the Phoenix Mission

The Atacama Desert (Chile) ranks as the driest desert on Earth, and is considered a good analog to the extremely arid conditions on Mars. Alfonso will show how photosynthetic bacteria in the hyper-arid core of the Atacama are almost exclusively found within hygroscopic salts, which favor the condensation of water at relative humidity levels that otherwise hinder the occurrence of liquid water on the surface. The resulting saturated solutions are challenging to life, but the habitability of some salts is enhanced at temperatures close to the eutectic.

The Role of Cortical Noise in Brain Function

Professor Glaser will show some visual dynamic and static visual illusions and the effects of ethanol and marijuana on these illusions. He will speculate that ET's may experience a different set of illusions related to their own brain structures and functions. Could their language and visual imagery depend on these cerebral features and therefore be difficult for us to "understand" or appreciate? Do you assume in your work that their physics is the same as ours? 

Jets and Outflows from Young Stars: How They Help Shape the Early Solar System

Jets and outflows from young forming stars are among the most spectacular and energetic phenomena in the night sky. They are ubiquitous in star forming regions, and signal the birth of stars like our own. Similar phenomena exist around new higher massive stars, compact objects, and even black holes. They may differ in dynamics, energetics or emission mechanisms, yet they share the striking similarities in their highly-collimated appearance and high-velocity outflowing motion of gas.

Probing the Meteorology of our Protoplanetary Disk with Cometary Mineralogy

Our planetary system formed out of a rotating accretion disk of gas and dust, often called the solar nebula. In the outer disk where temperatures were cold enough to harbor ices and interstellar materials, comet nuclei accreted. Yet, comets also accreted Mg-rich crystalline silicate mineral grains that formed in the hot inner disk close to the young Sun. Hence, cometary Mg-rich crystalline silicates are the touchstone for radial transport of grains that formed in the inner protoplanetary disk out to the comet-forming zone.

The NEO Challenge: Technology and Politics

Ed & Rusty will respectively give an overview of the challenge of protecting the Earth from asteroid impacts from the perspectives of both the technical capability to deflect them (and provide other mitigation options) and the international political challenge in defining and agreeing to take such actions.

Following Carbon's Evolutionary Path from Nucleosynthesis to the the Solar System

Observations at millimeter/submillimeter wavelengths of various species can be used to trace the cyclic nature of molecular material, specifically carbon-based, throughout stellar evolution. Studies have shown that the carbon isotopic composition of the interstellar medium suggest a strong dependence upon nearby evolved stars and distance to the Galactic center. However, this can also be affected by the chemical composition, carbon-rich or oxygen-rich, and evolutionary status of these old stars.

Anoxygenic photosynthesis, evolution, and the origin of continents and cyanobacteria

Pre-photosynthetic niches were meager with productivity << 10-4 of modern photosynthesis. Serpentinisation, arc volcanism, and ridge-axis volcanism reliably provided H2. Methanogens and acetogens reacted CO2 with H2 to obtain energy and make organic matter. These skills preadapted a bacterium for anoxygenic photosynthesis, probably starting with H2 in lieu of an oxygen acceptor. Use of ferrous iron and sulphide followed as abundant oxygen acceptors, allowing productivity to approach modern levels.


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