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FEATURE STORIES

Image of Kepler-20e and Venus
12.20.11 - Kepler Mission Discovers First Earth-size Planets Beyond Our Solar System
With help from the Pleiades supercomputer and NAS experts, scientists have validated the discovery of two new planets, Kepler–20e and Kepler–20f. The discovery is detailed in a paper in Nature, with NAS's Chris Henze as a coauthor.
Mosaic of precipitation map and Piermont Marsh
12.05.11 - Ancient Dry Spells Offer Clues About the Future of Drought
Goddard Institute for Space Studies scientists have unearthed new evidence about ancient droughts in Mexico's Yucatán and in New York's Hudson River valley that suggest the future could bring even more serious water shortages.
Hubble image of merging galaxies
10.27.11 - Astronomers Pin Down Galaxy Collision Rate
A new analysis of Hubble surveys, combined with simulations of galaxy interactions, reveals that the merger rate of galaxies over the last 8 billion to 9 billion years falls between the previous estimates.
Photo of Gavin Schmidt
10.24.11 - NASA Scientist Receives Inaugural Climate Communications Award
Gavin Schmidt, a climate scientist at NASA’s Goddard Institute for Space Studies, received the Climate Communications Prize from AGU. Schmidt often uses large-scale models of the atmosphere and ocean to simulate past and future climate conditions.
Visualization of vibration waves as a primordial black hole (white dots) passes through the center of a star
09.19.11 - Black Holes May Illuminate Universe's Dark Side
Researchers at Princeton and New York University have simulated the resulting effects of stars colliding with black holes. Using calculations run on the Pleiades supercomputer, NASA Advanced Supercomputing Facility visualization experts created video simulations of the collisions.
Cross-section of wavenumber contour
09.07.11 - The Impact of Stratospheric Ozone Changes on Downward Wave Coupling in the Southern Hemisphere
Using supercomputing resources at the NASA Advanced Supercomputing Facility, scientists have published a study that reveals a new mechanism wherein stratospheric ozone changes can affect the tropospheric circulation.
Photo of NASA Global Hawk aircraft
08.04.11 - GEOS-5 Forecasting Support for HS3 Campaign
NASA Goddard's Global Modeling and Assimilation Office, Mesoscale Atmospheric Processes Branch and NASA Center for Climate Simulation are providing meteorological and chemical forecast support for NASA's Hurricane and Severe Storm Sentinel (HS3) mission.
Detailed view of the Milky Way's core
07.27.11 - Black Hole Collision May Have Set Off Fireworks in the Milky Way
Smashup may have produced some of the highest energy radiation in the universe. Supporting simulations ran on NASA's Pleiades and Columbia supercomputers.
Photo of NASA P3B aircraft
07.13.11 - GEOS-5 Forecasting Support for DISCOVER-AQ Campaign
NASA Goddard's Global Modeling and Assimilation Office, Software Integration and Visualization Office, Atmospheric Chemistry and Dynamics Branch, and NASA Center for Climate Simulation are providing chemical forecast support for aiding flight planning and data analysis in the field.
Visualization of aircraft landing gear noise
06.27.11 - High-Fidelity Simulation of Landing Gear Noise
Scientist Mehdi Khorrami teams up with NAS' Pat Moran to explain the intricate challenges of simulating and visualizing aircraft landing gear noise to improve the sonic environment.
Photo of GPU cluster
06.09.11 - GPUs Demonstrate Potential for NASA Science Simulations
NASA Earth and space simulations are getting a boost from graphics processing units (GPUs), with early results on laboratory and NASA Center for Climate Simulation GPU systems demonstrating potential for significant speedups.
Section from new view of heliosheath
06.09.11 - NASA Probes Suggest Magnetic Bubbles Reside At Solar System Edge
Voyager spacecraft observations, analyzed using a new computer model, suggest the edge of our solar system may not be smooth, but filled with a turbulent sea of magnetic bubbles.
Cosmology image
05.31.11 - A Dark Matter for Astrophysics Research
Projects like the Sloan Digital Sky Survey have provided a wealth of cosmological data. Using NASA's Pleiades supercomputer, researchers have simulated the region of the universe observed by Sloan.
Photo of Discover supercomputer unit
04.28.11 - NCCS Doubles Computational Power for Users
This month, the NASA Center for Climate Simulation (NCCS) made available to users the newest unit of its "Discover" supercomputer. The 14,400-processor Dell PowerEdge C6100 server doubles Discover's computational power.
Photo of waves crashing against seawall
04.26.11 - Adapting to Sea Level Rise in New York City
As warming climate causes sea level rise, coastal urban areas such as New York City face more frequent and intense episodic flooding following storms and inundation of some low-lying areas.
Photo of Discover supercomputer Scalable Unit 7
04.21.11 - NAS and NCCS Moving to a Common Standard Billing Unit (SBU) May 1, 2011
NASA and NCCS will use a common SBU for allocating and tracking computing time usage. The new SBUs will appear in usage reports starting on May 1, 2011, the beginning of the allocation year for many computational projects.
Photo of pollution over Mexico City
04.01.11 - Emissions Standards Good for Health, Agriculture, Climate
A new Goddard Institute for Space Studies analysis shows that greater adoption of American and European vehicle emission standards in other countries would yield major health, agricultural, and climate benefits.
Scientific visualization showing pressure coefficient contours on the surface of the Space Shuttle External Tank for a free-stream Mach number of 1.55
02.23.11 - The "Right Stuff" at the Right Time
A confluence of skills, resources, and timing has put NAS modeling and simulation experts at the forefront of safety analysis for shuttle missions over the last seven years.

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