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dateMore Than a Year Ago
subjectTheory
authorNASA

An edited collection of advanced computing news from Communications of the ACM, ACM TechNews, other ACM resources, and news sites around the Web.


Nasa Mars Rover Opportunity Climbs to High Point on Rim
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Nasa Mars Rover Opportunity Climbs to High Point on Rim

After completing two drives this week, NASA's Mars Exploration Rover Opportunity has paused to photograph the panoramic vista from the highest point the rover has...

Scientists Pinpoint Saturn With Exquisite Accuracy
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Scientists Pinpoint Saturn With Exquisite Accuracy

Scientists have paired NASA's Cassini spacecraft with the National Science Foundation's Very Long Baseline Array (VLBA) radio-telescope system to pinpoint the position...

Sun Sizzles in High-Energy X-Rays
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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...

Rosetta Orbiter to Swoop Down On Comet in February
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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...

NASA Voyager: 'Tsunami Wave' Still Flies Through Interstellar Space
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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,...

Signs of Ancient Mars Lakes and Quakes Seen in New Map
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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.

Opals: Light Beams Let Data Rates Soar
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Opals: Light Beams Let Data Rates Soar

You may know opals as fiery gemstones, but something special called OPALS is floating above us in space. On the International Space Station, the Optical Payload...

Saturn's Moons: What a Difference a Decade Makes
From ACM News

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.

Nasa's Curiosity Rover Finds Clues to How Water Helped Shape Martian Landscape
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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.

Dawn Snaps Its Best-Yet Image of Dwarf Planet Ceres
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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...

Researchers Advance 'quantum Teleportation'
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Researchers Advance 'quantum Teleportation'

The world at the quantum level, at the scale of particles too small for the eye to see, is very strange.

Nasa's Curiosity Mars Rover Finds Mineral Match
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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...

Cassini Sees Sunny Seas on Titan
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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.

Galactic Wheel of Life Shines in Infrared
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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...

Cassini Caught in Hyperion's Particle Beam
From ACM News

Cassini Caught in Hyperion's Particle Beam

Static electricity is known to play an important role on Earth's airless, dusty moon, but evidence of static charge building up on other objects in the solar system...

Nasa Mission Provides Its First Look at Martian Upper Atmosphere
From ACM News

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...

Tiny U.s. Region Is Methane 'hot Spot,' Nasa Finds
From ACM News

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...

Nasa's Nustar Telescope Discovers Shockingly Bright Dead Star
From ACM News

Nasa's Nustar Telescope Discovers Shockingly Bright Dead Star

Astronomers have found a pulsating, dead star beaming with the energy of about 10 million suns. This is the brightest pulsar—a dense stellar remnant left over from...

Striking View of Saturn's Polar 'Hexagon'
From ACM News

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...

Rosetta Comet Fires Its Jets
From ACM News

Rosetta Comet Fires Its Jets

The four images that make up a new montage of comet 67P/Churyumov-Gerasimenko were taken on September 26, 2014 by the European Space Agency's Rosetta spacecraft...
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