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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Recurring Martian Streaks: Flowing Sand, Not Water?
Dark features on Mars previously considered evidence for subsurface flowing of water are interpreted by new research as granular flows, where grains of sand and...
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Listening For Gravitational Waves Using Pulsars
One of the most spectacular achievements in physics so far this century has been the observation of gravitational waves, ripples in space-time that result from...
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Dawn Explores Ceres' Interior Evolution
Surface features on Ceres—the largest world between Mars and Jupiter—and its interior evolution have a closer relationship than one might think.
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Powering Saturn's Active Ocean Moon
Heat from friction could power hydrothermal activity on Saturn's moon Enceladus for billions of years if the moon has a highly porous core, according to a new modeling...
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Next Mars Rover Will Have 23 'eyes'
When NASA's Mars Pathfinder touched down in 1997, it had five cameras: two on a mast that popped up from the lander, and three on NASA's first rover, Sojourner....
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Nustar Probes Black Hole Jet Mystery
Black holes are famous for being ravenous eaters, but they do not eat everything that falls toward them.
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Small Asteroid or Comet 'visits' from Beyond the Solar System
A small, recently discovered asteroid—or perhaps a comet&mdsah;appears to have originated from outside the solar system, coming from somewhere else in our galaxy...
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Take a Walk on Mars, in Your Own Living Room
When NASA scientists want to follow the path of the Curiosity rover on Mars, they can don a mixed-reality headset and virtually explore the Martian landscape.
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Deep Space Communications via Faraway Photons
A spacecraft destined to explore a unique asteroid will also test new communication hardware that uses lasers instead of radio waves.
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Fresh Findings From Cassini
NASA's Cassini spacecraft ended its journey on Sept. 15 with an intentional plunge into the atmosphere of Saturn, but analysis continues on the mountain of data...
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Nasa Missions Catch First Light from a Gravitational-Wave Event
For the first time, NASA scientists have detected light tied to a gravitational-wave event, thanks to two merging neutron stars in the galaxy NGC 4993, located...
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Reconstructing Cassini's Plunge Into Saturn
As NASA's Cassini spacecraft made its fateful dive into the upper atmosphere of Saturn on Sept. 15, the spacecraft was live-streaming data from eight of its science...
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Mars Study Yields Clues to Possible Cradle of Life
The discovery of evidence for ancient sea-floor hydrothermal deposits on Mars identifies an area on the planet that may offer clues about the origin of life on...
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Examining Mars' Moon Phobos in a Different Light
NASA's longest-lived mission to Mars has gained its first look at the Martian moon Phobos, pursuing a deeper understanding by examining it in infrared wavelengths...
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The Super-Earth that Came Home For Dinner
It might be lingering bashfully on the icy outer edges of our solar system, hiding in the dark, but subtly pulling strings behind the scenes: stretching out the...
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Nasa Damage Map Aids Puerto Rico Hurricane Response
A NASA-produced map showing areas of eastern Puerto Rico that were likely damaged by Hurricane Maria has been provided to responding agencies, including the Federal...
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Wind, Warm Water Revved p Melting Antarctic Glaciers
A NASA study has located the Antarctic glaciers that accelerated the fastest between 2008 and 2014 and finds that the most likely cause of their speedup is an observed...
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Cassini Spacecraft Makes Its Final Approach to Saturn
NASA's Cassini spacecraft is on final approach to Saturn, following confirmation by mission navigators that it is on course to dive into the planet's atmosphere...
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Cassini Makes Its 'goodbye Kiss' Flyby of Titan
NASA's Cassini spacecraft is headed toward its Sept. 15 plunge into Saturn, following a final, distant flyby of the planet's giant moon Titan.
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