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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 Study Brings Antarctic Ice Loss Into Sharper Focus
From ACM News

New Study Brings Antarctic Ice Loss Into Sharper Focus

A NASA study based on an innovative technique for crunching torrents of satellite data provides the clearest picture yet of changes in Antarctic ice flow into the...

New Study Finds Sea Level Rise Accelerating
From ACM News

New Study Finds Sea Level Rise Accelerating

The rate of global sea level rise has been accelerating in recent decades, rather than increasing steadily, according to a new study based on 25 years of NASA and...

NASA Tests Atomic Clock For Deep Space Navigation
From ACM News

NASA Tests Atomic Clock For Deep Space Navigation

In deep space, accurate timekeeping is vital to navigation, but many spacecraft lack precise timepieces on board.

New Nasa Space Sensors to Address Key Earth Questions
From ACM News

New Nasa Space Sensors to Address Key Earth Questions

Why is the Arctic warming faster than the rest of the planet?

Vista From Mars Rover Looks Back Over Journey So Far
From ACM News

Vista From Mars Rover Looks Back Over Journey So Far

A panoramic image that NASA's Curiosity Mars rover took from a mountainside ridge provides a sweeping vista of key sites visited since the rover's 2012 landing,...

Geocarb: A New View of Carbon Over the Americas
From ACM News

Geocarb: A New View of Carbon Over the Americas

A new NASA Earth science mission in the early stages of design may achieve a transformational advance in our understanding of the global carbon cycle by mapping...

Nasa Space Telescopes Provide a 3D Journey Through the Orion Nebula
From ACM News

Nasa Space Telescopes Provide a 3D Journey Through the Orion Nebula

Astronomers and visualization specialists from NASA's Universe of Learning program have combined visible and infrared vision of the Hubble and Spitzer space telescopes...

Nasa Sees First Direct Proof of Ozone Hole Recovery
From ACM News

Nasa Sees First Direct Proof of Ozone Hole Recovery

For the first time, scientists have shown through direct observations of the ozone hole by a satellite instrument, built by NASA's Jet Propulsion Laboratory in...

Artificial Intelligence, Nasa Data Used to Discover Eighth Planet Circling Distant Star
From ACM News

Artificial Intelligence, Nasa Data Used to Discover Eighth Planet Circling Distant Star

Our solar system now is tied for most number of planets around a single star, with the recent discovery of an eighth planet circling Kepler-90, a Sun-like star...

Sierras Lost Water Weight, Grew Taller During Drought
From ACM News

Sierras Lost Water Weight, Grew Taller During Drought

Loss of water from the rocks of California's Sierra Nevada caused the mountain range to rise nearly an inch (24 millimeters) in height during the drought years...

Bright Areas on Ceres Suggest Geologic Activity
From ACM News

Bright Areas on Ceres Suggest Geologic Activity

If you could fly aboard NASA's Dawn spacecraft, the surface of dwarf planet Ceres would generally look quite dark, but with notable exceptions.

Nasa's Juno Probes the Depths of Jupiter's Great Red Spot
From ACM News

Nasa's Juno Probes the Depths of Jupiter's Great Red Spot

Data collected by NASA's Juno spacecraft during its first pass over Jupiter's Great Red Spot in July 2017 indicate that this iconic feature penetrates well below...

Found: Most Distant Black Hole
From ACM News

Found: Most Distant Black Hole

Scientists have uncovered a rare relic from the early universe: the farthest known supermassive black hole. This matter-eating beast is 800 million times the mass...

Voyager 1 Fires Up Thrusters After 37 Years
From ACM News

Voyager 1 Fires Up Thrusters After 37 Years

If you tried to start a car that's been sitting in a garage for decades, you might not expect the engine to respond. But a set of thrusters aboard the Voyager 1...

Nasa Builds Its Next Mars Rover Mission
From ACM News

Nasa Builds Its Next Mars Rover Mission

In just a few years, NASA's next Mars rover mission will be flying to the Red Planet.

Nasa Links Port-City Sea Levels to Regional Ice Melt
From ACM News

Nasa Links Port-City Sea Levels to Regional Ice Melt

A new NASA tool links changes in sea level in 293 global port cities to specific regions of melting land ice, such as southern Greenland and the Antarctic Peninsula...

Recurring Martian Streaks: Flowing Sand, Not Water?
From ACM News

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...

Listening For Gravitational Waves Using Pulsars
From ACM News

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...

Dawn Explores Ceres' Interior Evolution
From ACM News

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.

Powering Saturn's Active Ocean Moon
From ACM News

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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