Communications of the ACM
There is Plenty of Room at The Top (of Supercomputing)
Jack Dongarra on the future of high-performance computing.
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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Europa's Ocean May Have An Earthlike Chemical Balance
A new NASA study modeling conditions in the ocean of Jupiter's moon Europa suggests that the necessary balance of chemical energy for life could exist there, even...
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New Study Maps Rate of New Orleans Sinking
New Orleans and surrounding areas continue to sink at highly variable rates due to a combination of natural geologic and human-induced processes, finds a new NASA...
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Second Cycle of Martian Seasons Completing For Curiosity Rover
NASA's Curiosity Mars rover completed its second Martian year since landing inside Gale Crater nearly four Earth years ago, which means it has recorded environmental...
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2007 OR10: Largest Unnamed World in the Solar System
Dwarf planets tend to be a mysterious bunch. With the exception of Ceres, which resides in the main asteroid belt between Mars and Jupiter, all members of this...
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Nasa's Kepler Mission Announces Largest Collection of Planets Ever Discovered
NASA's Kepler mission has verified 1,284 new planets—the single largest finding of planets to date.
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Enceladus Jets: Surprises in Starlight
During a recent stargazing session, NASA's Cassini spacecraft watched a bright star pass behind the plume of gas and dust that spews from Saturn's icy moon Enceladus...
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Found: Clues About Volcanoes Under Ice on Ancient Mars
Volcanoes erupted beneath an ice sheet on Mars billions of years ago, far from any ice sheet on the Red Planet today, new evidence from NASA's Mars Reconnaissance...
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Hiding in the Sunshine: The Search for Other Earths
We humans might not be the only ones to ponder our place in the universe.
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Curiosity Mars Rover Crosses Rugged Plateau
NASA's Curiosity Mars rover has nearly finished crossing a stretch of the most rugged and difficult-to-navigate terrain encountered during the mission's 44 months...
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Cassini Explores a Methane Sea on Titan
Of the hundreds of moons in our solar system, Titan is the only one with a dense atmosphere and large liquid reservoirs on its surface, making it in some ways more...
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Light Echoes Give Clues to Protoplanetary Disk
Imagine you want to measure the size of a room, but it's completely dark. If you shout, you can tell if the space you're in is relatively big or small, depending...
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New Ceres Images Show Bright Craters
Craters with bright material on dwarf planet Ceres shine in new images from NASA's Dawn mission.
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Saturn Spacecraft Samples Interstellar Dust
NASA's Cassini spacecraft has detected the faint but distinct signature of dust coming from beyond our solar system.
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Nasa Study Solves Two Mysteries About Wobbling Earth
Using satellite data on how water moves around Earth, NASA scientists have solved two mysteries about wobbles in the planet's rotation—one new and one more than...
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Kepler Spacecraft in Emergency Mode
During a scheduled contact on Thursday, April 7, mission operations engineers discovered that the Kepler spacecraft was in Emergency Mode (EM). EM is the lowest...
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Searching for Far Out and Wandering Worlds
Astronomers have made great strides in discovering planets outside of our solar system, termed "exoplanets."
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Opportunity's Devilish View from on High
From its perch high on a ridge, NASA's Mars Exploration Rover Opportunity recorded this image of a Martian dust devil twisting through the valley below.
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Rover Takes on Steepest Slope Ever Tried on Mars
NASA's long-lived Mars rover Opportunity is driving to an alternative hillside target after a climb on the steepest slope ever tackled by any Mars rover.
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'mixed Reality' Technology Brings Mars to Earth
What might it look like if you were walking around on Mars?
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