Communications of the ACM
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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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Sun Sizzles in High-Energy X-Rays
For the first time, a mission designed to set its eyes on black holes and other objects far from our solar system has turned its gaze back closer to home, capturing...
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Rosetta Orbiter to Swoop Down On Comet in February
The European Space Agency's orbiting Rosetta spacecraft is expected to come within four miles (six kilometers) of the surface of comet 67P/Churyumov-Gerasimenko...
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NASA Voyager: 'Tsunami Wave' Still Flies Through Interstellar Space
The Voyager 1 spacecraft has experienced three shock waves. The most recent shock wave, first observed in February 2014, still appears to be going on. One wave,...
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Signs of Ancient Mars Lakes and Quakes Seen in New Map
Long ago, in the largest canyon system in our solar system, vibrations from "marsquakes" shook soft sediments that had accumulated in Martian lakes.
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Saturn's Moons: What a Difference a Decade Makes
Almost immediately after NASA's twin Voyager spacecraft made their brief visits to Saturn in the early 1980s, scientists were hungry for more.
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Nasa's Curiosity Rover Finds Clues to How Water Helped Shape Martian Landscape
Observations by NASA's Curiosity Rover indicate Mars' Mount Sharp was built by sediments deposited in a large lake bed over tens of millions of years.
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On Pluto’s Doorstep, NASA's New Horizons Spacecraft Awakens for Encounter
After a voyage of nearly nine years and three billion miles—the farthest any space mission has ever traveled to reach its primary target—NASA's New Horizons spacecraft...
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Dawn Snaps Its Best-Yet Image of Dwarf Planet Ceres
The Dawn spacecraft has delivered a glimpse of Ceres, the largest body in the main asteroid belt, in a new image taken 740,000 miles (1.2 million kilometers) from...
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Nasa Issues 'remastered' View of Jupiter's Moon Europa
Scientists have produced a new version of what is perhaps NASA's best view of Jupiter's ice-covered moon, Europa.
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Newest Nasa Mars Orbiter Demonstrates Relay Prowess
The newest node in NASA's Mars telecommunications network—a radio aboard the MAVEN orbiter custom-designed for data links with robots on the surface of Mars—handled...
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Nasa's Curiosity Mars Rover Finds Mineral Match
Reddish rock powder from the first hole drilled into a Martian mountain by NASA's Curiosity rover has yielded the mission's first confirmation of a mineral mapped...
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Cassini Sees Sunny Seas on Titan
As it soared past Saturn's large moon Titan recently, NASA's Cassini spacecraft caught a glimpse of bright sunlight reflecting off hydrocarbon seas.
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Rosetta's Comet Scrambling Its Jets
This image of comet 67P/Churyumov-Gerasimenko, taken by Rosetta's Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) on Sept. 20, from a distance...
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Galactic Wheel of Life Shines in Infrared
It might look like a spoked wheel or even a "Chakram" weapon wielded by warriors like "Xena," from the fictional TV show, but this ringed galaxy is actually a vast...
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All Three NASA Mars Orbiters Healthy After Comet Flyby
All three NASA orbiters around Mars confirmed their healthy status Sunday after each took shelter behind Mars during a period of risk from dust released by a passing...
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Nasa Mission Provides Its First Look at Martian Upper Atmosphere
NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft has provided scientists their first look at a storm of energetic solar particles at Mars, produced...
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Nasa Prepares its Science Fleet For Oct. 19 Mars Comet Encounter
NASA's extensive fleet of science assets, particularly those orbiting and roving Mars, have front row seats to image and study a once-in-a-lifetime comet flyby...
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Tiny U.s. Region Is Methane 'hot Spot,' Nasa Finds
One small "hot spot" in the U.S. Southwest is responsible for producing the largest concentration of the greenhouse gas methane seen over the United States—more...
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Striking View of Saturn's Polar 'Hexagon'
Nature is often more complex and wonderful than it first appears. For example, although it looks like a simple hexagon, this feature surrounding Saturn's north...
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