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...Jet Propulsion Laboratory/NASA From ACM News | January 12, 2015
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...Jet Propulsion Laboratory/NASA From ACM News | January 9, 2015
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...Jet Propulsion Laboratory/NASA From ACM News | December 22, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | December 19, 2014
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,...Jet Propulsion Laboratory/NASA From ACM News | December 16, 2014
Long ago, in the largest canyon system in our solar system, vibrations from "marsquakes" shook soft sediments that had accumulated in Martian lakes.Jet Propulsion Laboratory/NASA From ACM News | December 15, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | December 12, 2014
Almost immediately after NASA's twin Voyager spacecraft made their brief visits to Saturn in the early 1980s, scientists were hungry for more.Jet Propulsion Laboratory/NASA From ACM News | December 11, 2014
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.Jet Propulsion Laboratory/NASA From ACM News | December 9, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | December 8, 2014
The world at the quantum level, at the scale of particles too small for the eye to see, is very strange.Jet Propulsion Laboratory/NASA From ACM News | November 21, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | November 5, 2014
As it soared past Saturn's large moon Titan recently, NASA's Cassini spacecraft caught a glimpse of bright sunlight reflecting off hydrocarbon seas.Jet Propulsion Laboratory/NASA From ACM News | October 31, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | October 22, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | October 17, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | October 15, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | October 10, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | October 9, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | October 8, 2014
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...Jet Propulsion Laboratory/NASA From ACM News | October 3, 2014