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subjectPerformance And Reliability
authorJet Propulsion Laboratory/NASA

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 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,...

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...

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.

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 ­p Thrusters After 37 Years
From ACM News

Voyager 1 Fires ­p 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...

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...

Next Mars Rover Will Have 23 'eyes'
From ACM News

Next Mars Rover Will Have 23 'eyes'

When NASA's Mars Pathfinder touched down in 1997, it had five cameras: two on a mast that popped up from the lander, and three on NASA's first rover, Sojourner....

Take a Walk on Mars, in Your Own Living Room
From ACM News

Take a Walk on Mars, in Your Own Living Room

When NASA scientists want to follow the path of the Curiosity rover on Mars, they can don a mixed-reality headset and virtually explore the Martian landscape.

Deep Space Communications via Faraway Photons
From ACM News

Deep Space Communications via Faraway Photons

A spacecraft destined to explore a unique asteroid will also test new communication hardware that uses lasers instead of radio waves.

Fresh Findings From Cassini
From ACM News

Fresh Findings From Cassini

NASA's Cassini spacecraft ended its journey on Sept. 15 with an intentional plunge into the atmosphere of Saturn, but analysis continues on the mountain of data...

Nasa Missions Catch First Light from a Gravitational-Wave Event
From ACM News

Nasa Missions Catch First Light from a Gravitational-Wave Event

For the first time, NASA scientists have detected light tied to a gravitational-wave event, thanks to two merging neutron stars in the galaxy NGC 4993, located...
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