Communications of the ACM
Fighting Impersonation by AI
Finding ways to determine whether a voice message is real or generated by an artificial intelligence.
From ACM NewsAn edited collection of advanced computing news from Communications of the ACM, ACM TechNews, other ACM resources, and news sites around the Web.
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Nasa Announces Asteroid Grand Challenge
NASA announced Tuesday a Grand Challenge focused on finding all asteroid threats to human populations and knowing what to do about them.
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Nasa Spacecraft Sees Tornado's Destructive Swath
A new image from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft shows the extent of destruction...
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Century-Old Science Helps Confirm Global Warming
A new NASA and university analysis of ocean data collected more than 135 years ago by the crew of the HMS Challenger oceanographic expedition provides further confirmation...
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Nasa's Spitzer Puts Planets in a Petri Dish
Our galaxy is teeming with a wild variety of planets.
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Nasa Associate Administrator on Asteroid Initiative
"The mission to find, capture and redirect an asteroid robotically, and then visit it with astronauts to study it and return samples takes advantage of expertise...
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Planck Mission Brings niverse Into Sharp Focus
The Planck space mission has released the most accurate and detailed map ever made of the oldest light in the universe, revealing new information about its age,...
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Nasa Satellites Find Freshwater Losses in Middle East
A new study using data from a pair of gravity-measuring NASA satellites finds that large parts of the arid Middle East region lost freshwater reserves rapidly during...
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Billions and Billions of Planets
Look up at the night sky and you'll see stars, sure. But the sky is also filled with planets—billions and billions of them at least.
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Nasa-Noaa Satellite Reveals New Views of Earth at Night
Scientists unveiled today an unprecedented new look at our planet at night.
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What Goes Down Must Come Back Up
For most of the past two decades, the NASA and European Topex/Poseidon, Jason-1 and Jason-2 satellites have tracked the gradual rise of the world's ocean in response...
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Climate Likely to Be on Hotter Side of Projections
A new NASA-funded study by the National Center for Atmospheric Research, Boulder, Colo., finds climate model projections that show a greater rise in global temperature...
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Nasa's Infrared Observatory Measures Expansion of Universe
Astronomers using NASA's Spitzer Space Telescope have announced the most precise measurement yet of the Hubble constant, or the rate at which our universe is stretching...
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Hubble Goes to the Extreme to Assemble Farthest-Ever View of the niverse
Like photographers assembling a portfolio of best shots, astronomers have assembled a new, improved portrait of mankind's deepest-ever view of the universe.
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Nasa's Dawn Prepares For Trek Toward Dwarf Planet
NASA's Dawn spacecraft is on track to become the first probe to orbit and study two distant destinations to help scientists answer questions about the formation...
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Top Five 'earth as Art' Winners
During a span of 40 years, since 1972, the Landsat series of Earth observation satellites has become a vital reference worldwide for understanding scientific issues...
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Nasa Survey Counts Potentially Hazardous Asteroids
Observations from NASA's Wide-field Infrared Survey Explorer (WISE) have led to the best assessment yet of our solar system's population of potentially hazardous...
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Nasa Pinning Down Where 'here' Is Better Than Ever
Before our Global Positioning System navigation devices can tell us where we are, the satellites that make up the GPS need to know exactly where they are.
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NASA Map Sees Earth's Trees in a New Light
A NASA-led science team has created an accurate, high-resolution map of the height of Earth's forests.
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Nasa and Tor-Forge Books Partner in Themed Science Fiction Works
In an effort to introduce, inform, and inspire readers about NASA, the agency's Goddard Space Flight Center in Greenbelt, MD, has partnered with Tor-Forge Books...
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