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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.


New Horizons' Next Target Just Got a Lot More Interesting
From ACM News

New Horizons' Next Target Just Got a Lot More Interesting

Could the next flyby target for NASA's New Horizons spacecraft actually be two targets?

Five Years Ago and 154 Million Miles Away: Touchdown!
From ACM News

Five Years Ago and 154 Million Miles Away: Touchdown!

NASA's Curiosity Mars rover, which landed near Mount Sharp five years ago this week, is examining clues on that mountain about long-ago lakes on Mars.

Two Voyagers Taught ­S How to Listen to Space
From ACM News

Two Voyagers Taught ­S How to Listen to Space

As NASA's twin Voyager spacecraft were changing our understanding of the solar system, they also spurred a leap in spacecraft communications.

Nasa's Voyager Spacecraft Still Reaching For the Stars After 40 Years
From ACM News

Nasa's Voyager Spacecraft Still Reaching For the Stars After 40 Years

Humanity's farthest and longest-lived spacecraft, Voyager 1 and 2, achieve 40 years of operation and exploration this August and September. Despite their vast distance...

Large, Distant Comets More Common Than Previously Thought
From ACM News

Large, Distant Comets More Common Than Previously Thought

Comets that take more than 200 years to make one revolution around the Sun are notoriously difficult to study.

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 Video Soars Over Pluto's Majestic Mountains and Icy Plains
From ACM News

Nasa Video Soars Over Pluto's Majestic Mountains and Icy Plains

 In July 2015, NASA's New Horizons spacecraft sent home the first close-up pictures of Pluto and its moons – amazing imagery that inspired many to wonder what a...

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...

Nasa's Juno Spacecraft Completes Flyby Over Jupiter's Great Red Spot
From ACM News

Nasa's Juno Spacecraft Completes Flyby Over Jupiter's Great Red Spot

NASA's Juno mission completed a close flyby of Jupiter and its Great Red Spot on July 10, during its sixth science orbit.

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 Selects Three Aeronautics Teams to Explore 'ambitious' Ideas
From ACM TechNews

Nasa Selects Three Aeronautics Teams to Explore 'ambitious' Ideas

The U.S. National Aeronautics and Space Administration has selected three teams of researchers to pursue ideas for creating components of Unmanned Aircraft Systems...

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...
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