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Communications of the ACM

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


Saturn Surprises As Cassini Continues its Grand Finale
From ACM News

Saturn Surprises As Cassini Continues its Grand Finale

As NASA's Cassini spacecraft makes its unprecedented series of weekly dives between Saturn and its rings, scientists are finding—so far—that the planet's magnetic...

From Mars Rover: Panorama Above 'Perseverance Valley'
From ACM News

From Mars Rover: Panorama Above 'Perseverance Valley'

NASA's Mars Exploration Rover Opportunity recorded a panoramic view before entering the upper end of a fluid-carved valley that descends the inner slope of a large...

NASA's Juno Spacecraft Spots Jupiter's Great Red Spot
From ACM News

NASA's Juno Spacecraft Spots Jupiter's Great Red Spot

Images of Jupiter's Great Red Spot reveal a tangle of dark, veinous clouds weaving their way through a massive crimson oval.

Curiosity Mars Rover Begins Study of Ridge Destination
From ACM News

Curiosity Mars Rover Begins Study of Ridge Destination

The car-size NASA rover on a Martian mountain, Curiosity, has begun its long-anticipated study of an iron-bearing ridge forming a distinctive layer on the mountain's...

Sleuthing for Seismic Answers in the Sooner State
From ACM News

Sleuthing for Seismic Answers in the Sooner State

Oklahomans are no strangers to Mother Nature's whims.

NASA Completes Study of Future 'Ice Giant' Mission Concepts
From ACM News

NASA Completes Study of Future 'Ice Giant' Mission Concepts

A NASA-led and NASA-sponsored study of potential future missions to the mysterious "ice giant" planets Uranus and Neptune has been released—the first in a series...

NuSTAR's First Five Years in Space
From ACM News

NuSTAR's First Five Years in Space

Five years ago, on June 13, 2012, Caltech's Fiona Harrison, principal investigator of NASA's NuSTAR mission, watched with her team as their black-hole-spying spacecraft...

NASA Finds Evidence of Diverse Environments in Curiosity Samples
From ACM News

NASA Finds Evidence of Diverse Environments in Curiosity Samples

NASA scientists have found a wide diversity of minerals in the initial samples of rocks collected by the Curiosity rover in the lowermost layers of Mount Sharp...

NASA's Asteroid-Hunting Spacecraft a Discovery Machine
From ACM News

NASA's Asteroid-Hunting Spacecraft a Discovery Machine

NASA's Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission has released its third year of survey data, with the spacecraft discovering 97 previously...

Curiosity Peels Back Layers on Ancient Martian Lake
From ACM News

Curiosity Peels Back Layers on Ancient Martian Lake

A long-lasting lake on ancient Mars provided stable environmental conditions that differed significantly from one part of the lake to another, according to a comprehensive...

Cassini Finds Saturn Moon May Have Tipped Over
From ACM News

Cassini Finds Saturn Moon May Have Tipped Over

Saturn's icy, ocean-bearing moon Enceladus may have tipped over in the distant past, according to recent research from NASA's Cassini mission.

High-Silica 'Halos' Shed Light on Wet Ancient Mars
From ACM News

High-Silica 'Halos' Shed Light on Wet Ancient Mars

Pale "halos" around fractures in bedrock analyzed by NASA's Curiosity Mars rover contain copious silica, indicating that ancient Mars had liquid water for a long...

A Whole New Jupiter: First Science Results from NASA's Juno Mission
From ACM News

A Whole New Jupiter: First Science Results from NASA's Juno Mission

Early science results from NASA's Juno mission to Jupiter portray the largest planet in our solar system as a complex, gigantic, turbulent world, with Earth-sized...

Observatories Combine to Crack Open the Crab Nebula
From ACM News

Observatories Combine to Crack Open the Crab Nebula

Astronomers have produced a highly detailed image of the Crab Nebula, by combining data from telescopes spanning nearly the entire breadth of the electromagnetic...

NASA Rover Samples Active Linear Dune on Mars
From ACM News

NASA Rover Samples Active Linear Dune on Mars

As it drives uphill from a band of rippled sand dunes, NASA's Curiosity Mars rover is toting a fistful of dark sand for onboard analysis that will complete the...

New Movie Shows Cassini's First Dive over Saturn
From ACM News

New Movie Shows Cassini's First Dive over Saturn

A new movie sequence of images from NASA's Cassini spacecraft shows the view as the spacecraft swooped over Saturn during the first of its Grand Finale dives between...

NASA Spacecraft Dives Between Saturn and Its Rings
From ACM News

NASA Spacecraft Dives Between Saturn and Its Rings

NASA's Cassini spacecraft is back in contact with Earth after its successful first-ever dive through the narrow gap between the planet Saturn and its rings on April...

'Iceball' Planet Discovered Through Microlensing
From ACM News

'Iceball' Planet Discovered Through Microlensing

Scientists have discovered a new planet with the mass of Earth, orbiting its star at the same distance that we orbit our sun.

Cassini's First Grand Finale Dive: Milestones
From ACM News

Cassini's First Grand Finale Dive: Milestones

NASA's Cassini spacecraft is set to make its first dive through the narrow gap between Saturn and its rings on April 26, 2017.

NASA's Mars Rover Opportunity Leaves 'Tribulation' 
From ACM News

NASA's Mars Rover Opportunity Leaves 'Tribulation' 

NASA's senior Mars rover, Opportunity, is departing "Cape Tribulation," a crater-rim segment it has explored since late 2014, southbound for its next destination...
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