Fifty Recent Colloquia

Risk Classification and Risk-based Safety and Mission Assurance2014-12-15

  • Leitner, Jesse
  • Recent activities to revamp and emphasize the need to streamline processes and activities for Class D missions across the agency have led to various interpretations of Class D, including the lumping ... [MORE]

Geeks, Hacker Culture, and Anonymous2014-12-10

  • Coleman, Gabriella
  • Drawing on fieldwork among Free and Open Source software hackers and the Anonymous protest movement, I will discuss some attributes of hacker and geek activism that set their actions apart from other ... [MORE]

Seeing Other Earths: Progress in Technologies for Imaging Extrasolar Rocky Planets from Space2014-12-08

  • Kasdin, Jeremy
  • With the combined results of radial velocity surveys and Kepler, we now know that there is an abundance of planets, particularly small, rocky planets. These data provide tantalizing hints that there ... [MORE]

An overview of the Center for Hybrid Multicore Productivity Research (CHMPR) at UMBC2014-12-03

  • Yesha, Yelena
  • The Center for Hybrid Multicore Productivity (CHMPR) has been a part of the National Science Foundation (NSF) Industry and University Cooperative Research Center (I/UCRC) Program since 2009. Currentl ... [MORE]

Liquid Natural Gas in the United States: A History2014-12-01

  • Hrastar, John
  • When natural gas was first discovered in Appalachia in the 19th century, its development was slow at first because it couldn't be moved easily. Unlike oil and coal, gas could be moved only by pipelin ... [MORE]

The Science and Exploration of Europa2014-11-19

  • Procktor, Louise
  • Jupiter's moon Europa has proved to be the most enigmatic of water worlds - it likely contains a deep salty ocean beneath its youthful ice crust, and may have conditions conducive to life. This talk ... [MORE]

Nuclear Rockets for the Future2014-11-17

  • Eberstein, Igor
  • This talk will describe a nuclear powered spaceship for use in traveling to Mars. The ship would be assembled in Earth orbit. At first, the ship would be used at first for commuting between the orbit ... [MORE]

How the Search for MH370 Reveals the Ubiquity (and Limitations) of Surveillance from Space2014-11-12

  • McDowell, Jonathan
  • When the Malaysian airliner MH370 went missing in March 2014,a wide range of spaceborne assets took part in the extensive search from wreckage. The public were surprised when orbiting satellites fail ... [MORE]

Cyber Security2014-11-12

  • Butler, Bill
  • Our collective privacy and data security are being challenged in many surprising and alarming ways. Despite our individual and corporate efforts to protect this data we are falling short. This talk i ... [MORE]

Life of a Snowflake2014-11-05

  • Johnson, Ben
  • The humble snowflake, oft noted for its unparalleled beauty and elegance, also plays a critical role in ensuring our continued survival as a species. Falling snow is a truly global phenomenon -- and ... [MORE]

Cloud Computing2014-11-05

  • Bohn, Robert
  • Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that c ... [MORE]

A Celebration of Fifty Years of Satellite Laser Ranging2014-10-29

  • Degnan, John
  • In Satellite Laser Ranging (SLR), a short laser pulse is transmitted from a ground station to an orbiting satellite and reflected back to the station, which measures the roundtrip time of flight and ... [MORE]

How to Bootstrap Technology: Building an Ocean-Going Polynesian Canoe from Scratch2014-10-20

  • Herman, Douglas
  • The settling of the Island Pacific more than 1,000 years ago is one of the greatest adventures of human history. Using double-hulled voyaging canoes built with Stone-Age tools and navigating by stars ... [MORE]

The End Fate of Our Solar System2014-10-15

  • Kalirai, Jason
  • Like humans, stars are born, they evolve, and eventually they die. For most stars, the stellar life cycle is dominated by quiescent phases such as the hydrogen-burning stage (e.g., our Sun today) and ... [MORE]

Towards a Reference Architecture for Archival Systems: Use Case with Product Data2014-10-15

  • Barbau, Raphael
  • Long-term preservation of product data is imperative for aerospace, aeronautics, shipbuilding, and other industries. A product data archive description should include the business functions the archi ... [MORE]

See the Ball, Be the Ball: How to Find and Characterize Planets Beyond our Solar System2014-10-08

  • McElwain, Michael
  • New technologies enable the detection and characterization of potentially habitable worlds around other stars, and recent scientific studies define a framework that can be used to confirm (or refute) ... [MORE]

Overview of the MAVEN mission, its development challenges, and current project status as we fly around the Red Planet (and dodge comets)2014-10-07

  • Houghton, Martin
  • The Mars Atmosphere and Volatile Evolution (MAVEN) mission was selected by the National Aeronautics and Space Administration in 2008 for development as the second Mars Scout mission. The mission laun ... [MORE]

Manufacturing, Actuation, Sensing, and Control for Robotic Insects2014-10-06

  • Wood, Robert
  • As the characteristic size of a flying robot decreases, the challenges for successful flight revert to basic questions of fabrication, actuation, fluid mechanics, stabilization, and power - whereas s ... [MORE]

Chlorinated Organics in a Gale Crater Mudstone and the Imprint of an Ancient Fluvial Environment in 3 Billion Year Old Water Found in a 4 Billion Year Old Martian Rock2014-10-01

  • Mahaffy, Paul
  • One Mars year after landing the one-ton Curiosity Rover in Gale Crater, Mars continues to surprise. Data from the Goddard Sample Analysis at Mars (SAM) experiment combined with that from the Alpha Pa ... [MORE]

Invisibility, the Theory and Practice, or A Sufficiently Advanced Science Can Be Even Better Than Magic!2014-09-29

  • Ashmead, John
  • We'll look at the history, theory, and practice of invisibility. We'll start with Wells's The Invisible Man (which has some surprisingly accurate physics); look at the uses of invisibility in war an ... [MORE]

Brilliant Blunders2014-09-23

  • Livio, Mario
  • Even the greatest scientists have made some serious blunders. "Brilliant Blunders" concerns the evolution of life on Earth, of the Earth itself, of stars, and of the universe as a whole. In this talk ... [MORE]

Tragedy to Triumph - Rebuilding the Majestic Roundhouse at the B and O Railroad Museum2014-09-22

  • Coleman, Pamela S.
  • The presentation will cover a brief history of the B and O Railroad Museum, an overview of the Museum campus, the original construction of the Roundhouse and previous renovations to the historic fabr ... [MORE]

Overview of JPSS GRAVITE system2014-09-17

  • Jain, Peyush
  • The Joint Polar Satellite System (JPSS) is the Nation's next-generation operational environmental satellite system that acquires and distributes global environmental data from multiple polar-orbiting ... [MORE]

SpaceCube High Performance Hybrid Data Space Processing System2014-09-17

  • Petrick, David
  • The purpose in building the SpaceCube v2.0 system is to create a superior high performance, reconfigurable, hybrid data processing system that can be used in a multitude of applications including tho ... [MORE]

NASA GSFC Containerized Computing2014-09-17

  • Keller, Keith
  • Modular, containerized data centers offer the potential for agile and green, cost effective computing infrastructure. Goddard has a containerized computing facility (building 28D) that is used as a b ... [MORE]

DiskDetective.org: Finding Planetary Systems through Citizen Science2014-09-17

  • Kuchner, Marc
  • The Disk Detective project is scouring the data archive from NASA's WISE all-sky survey to find new debris disks and protoplanetary disks. Volunteers on this new citizen science website have already ... [MORE]

Evaluating Alternative Sources of Energy: Solar Energy from Space2014-09-15

  • Jaffe, Paul
  • Global warming has focused attention on alternative energy sources that have lower carbon emissions versus conventional energy sources. For decades, proponents of Space Solar Power have advocated for ... [MORE]

Improving the Design Process of the REgolith X-ray Imaging Spectrometer (REXIS) with Model-Based Systems Engineering (MBSE)2014-09-15

  • Chodas, Mark
  • Model-based systems engineering (MBSE) is a new systems engineering paradigm where system models instead of documents are used to track requirements, describe design, support trade studies and analys ... [MORE]

New Developments in Orbital Debris Prevention and Protection2014-07-01

  • Hull, Scott
  • Orbital Debris has received increased attention lately among NASA missions, international space agencies, and even Hollywood. How much debris is really out there, where is it worst, and what can be d ... [MORE]

10 Years of Infrared Exploration with the Spitzer Space Telescope2014-06-13

  • Werner, Michael
  • In March of 2004, within a few months of the start of the scientific mission of the Spitzer Space Telescope, I talked here at GSFC about the scientific results that were only just starting to emerge ... [MORE]

Satellite Geodesy and NASA Earth Remote Sensing Missions2014-06-06

  • Luthcke, Scott B.
  • NASA's Earth remote sensing satellite missions have achieved significant scientific successes and have benefited society in numerous ways. Typically each mission has a sensor instrument or a suite of ... [MORE]

Latest Results from Voyager 1 Observation in the Very Local Interstellar Medium2014-05-30

  • Hill, Matthew
  • Voyager 1 (V1) traveled into a region of space dominated by interstellar particles and a high magnetic field strength in August 2012. Whether V1 crossed a traditional heliopause or some other sort of ... [MORE]

Tracing Human Migration using Genetic Markers2014-05-19

  • Schanfield, Moses
  • Of all species on the face of the earth, humans are the most disperse, in that they occupy the most diverse eco-systems, present on all large land masses and most large islands. In recent time much w ... [MORE]

The Great Transition: Shifting from Fossil Fuels to Wind and Solar Energy2014-05-16

  • Brown, Lester
  • As oil insecurity deepens, the extraction risks of fossil fuels rise, and concerns about climate instability cast a shadow over the future of coal, a new world energy economy is emerging. The old eco ... [MORE]

Extreme Spacecraft Engineering2014-05-12

  • Kusnierkiewicz, David
  • The Johns Hopkins University Applied Physics Laboratory Space Department has the privilege of conducting investigations of some of the most extreme places in the solar system for NASA. From exploring ... [MORE]

Putting a New Spin on Black Holes2014-05-09

  • Reynolds, Christopher
  • According to Einstein's General Relativity (GR), a spinning black hole twists up the nearby space-time. Studying these effects in real black hole systems provides, in principle, a powerful way to tes ... [MORE]

Tor's onion routing to secure and private communications for diverse users2014-05-07

  • Syverson, Paul
  • Tor is a system widely used throughout the world for free and open access to the Internet while protecting anonymity and other properties of communications. We will present a brief introductory overv ... [MORE]

GPR 7123.1B: System Engineering Requirements Update2014-05-06

  • Firman, Cynthia
  • The talk will be on the updates made to the GPR 7123 from version .1A to .1B for GSFC to be in compliance with the changes made from NPR 7123 version .1A to .1B. [MORE]

'We died at such a place!' The Interaction of Battlefield Archaeology and Forensic Science2014-05-05

  • Rowe, Walter F.
  • Battlefield archaeology has begun to emerge as a recognized discipline within the field of anthropology. Battlefield archaeologists use the methods of archaeology to interpret human behavior on battl ... [MORE]

Modeling Extreme Events in the Earth System2014-05-02

  • Oman, Luke
  • Climate models represent an excellent test bed to examine low probability but high impact events and scenarios. This talk will focus on 3 extreme forcings of the Earth climate system: one that happen ... [MORE]

Modeling Wildfires: Past, Present and Future2014-04-28

  • Gollner, Michael
  • In 2012, wildland fires burned more than 4.3 million acres, destroying 4244 structures and killing 34 firefighters. An accurate computer model of wildland fire is therefore essential, for land use pl ... [MORE]

The Puzzle of Energy Release in Solar Eruptive Events2014-04-25

  • Holman, Gordon
  • Solar eruptive events are large explosions on the Sun that produce both a solar flare, characterized observationally by rapid, intense brightenings, and the ejection of substantial material from the ... [MORE]

Tools for Creative Graphics2014-04-23

  • Shamir, Ariel
  • Powerful computer applications today allow manipulating digital objects in unimaginable ways. An exciting new trend allows fabricating and creating objects in reality using 3D printing and other tech ... [MORE]

Minimizing Human Factors Mishaps in Unmanned Aircraft Systems2014-04-14

  • Waraich, Raza
  • Unmanned aircraft system (UAS) mishaps attributable to lack of attention to human factors/ergonomics (HF/E) science in their ground control stations (GCSes) are alarmingly high. The ANSI/HFES 100-200 ... [MORE]

Saturn’s Great Northern Storm of 2010-2011: from storm clouds to hot vortices2014-04-11

  • Hesman, Brigette
  • The massive eruption at 40°N on Saturn in December 2010 has produced significant and lasting effects in the northern hemisphere on temperature and species abundance. When the storm clouds erupted int ... [MORE]

Connected Vehicles - Improving Safety, Mobility, and the Environment2014-04-09

  • Dopart, Kevin
  • USDOT's connected vehicle program aims to improve the operations of the transportation system by using technology to communicate between vehicles, the infrastructure and travelers. The presentation w ... [MORE]

John Wheeler's H-bomb Blues: Searching for a Missing Document in the High Cold War2014-04-07

  • Wellerstein, Alex
  • There's never a right time to lose a secret document under unusual circumstances. But for the influential American physicist John Archibald Wheeler, there might not have been a worse time than Januar ... [MORE]

How Explosive Was Ancient Mars?2014-04-04

  • Bleacher, Jacob
  • Mars displays ancient and vast deposits of volcanic materials including lava flows and ash. Furthermore, models to explain atmospheric and surface chemistry usually evoke degassing from ancient volca ... [MORE]

The Advanced Technology Large-Aperture Space Telescope (ATLAST): The Great Observatory to Follow JWST2014-04-01

  • Rioux, Norman
  • NASA's Science Mission Directorate has identified as a future high priority a very large-aperture space observatory operating from ultraviolet wavelengths into the near-infrared. The NRC in 2010 reco ... [MORE]

Interstellar Colonization on the Rapacious Hardscrapple Frontier2014-03-31

  • Hanson, Robin
  • Attempts to model interstellar colonization may seem hopelessly compromised by uncertainties regarding the technologies and preferences of advanced civilizations. However, if light speed limits trave ... [MORE]