Written by Preston Dyches
Pasadena, CA – As it soared past Saturn’s large moon Titan recently, NASA’s Cassini spacecraft caught a glimpse of bright sunlight reflecting off hydrocarbon seas.
In the past, Cassini had captured, separately, views of the polar seas and the sun glinting off them, but this is the first time both have been seen together in the same view.
Written by Karen C. Fox
Greenbelt, MD – The sun emitted a mid-level solar flare, an M6.6-class, peaking at 11:32pm EDT on October 28th, 2014 – the latest in a series of substantial flares from a giant active region on the sun that first erupted with a significant solar flare on October 19th.
NASA’s Solar Dynamics Observatory, which constantly observes the sun, captured images of the event.
To see how this event may affect Earth, please visit NOAA’s Space Weather Prediction Center at http://spaceweather.gov , the U.S. government’s official source for space weather forecasts, alerts, watches and warnings.
Written by Nancy Neal-Jones
Greenbelt, MD – NASA’S Lunar Reconnaissance Orbiter (LRO) spacecraft has spied a new crater on the lunar surface; one made from the impact of NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE) mission.
“The Lunar Reconnaissance Orbiter Camera (LROC) team recently developed a new computer tool to search Narrow Angle Camera (NAC) before and after image pairs for new craters, the LADEE impact event provided a fun test, said Mark Robinson, LROC principal investigator from Arizona State University in Tempe. “As it turns there were several small surface changes found in the predicted area of the impact, the biggest and most distinctive was within 968 feet (295 meters) of the spot estimated by the LADEE operations team. What fun!”
Written by Alan Buis
Pasadena, CA – A new space-based instrument to study how effectively plants use water is being developed at NASA’s Jet Propulsion Laboratory, Pasadena, California. The instrument, called the ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS), will monitor one of the most basic processes in living plants: the loss of water through the tiny pores in leaves.
When people lose water through their pores, the process is called sweating. The related process in plants is known as transpiration. Because water that evaporates from soil around plants also affects the amount of water that plants can use, ECOSTRESS will measure combined evaporation and transpiration, known as evapotranspiration.
Written by Courtney O’Connor
Pasadena, CA – NASA invites social media followers to apply for credentials to get a preview of the Orion spacecraft’s first flight test during NASA Social events December 3rd involving each of its 10 centers.
Orion will launch on a United Launch Alliance Delta IV Heavy rocket from Space Launch Complex 37 at Cape Canaveral Air Force Station in Florida. Liftoff is targeted for 4:05am PST (7:05am EST) December 4th.
Written by DC Agle
Pasadena, CA – This image of comet 67P/Churyumov-Gerasimenko, taken by Rosetta’s Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) on September 20th, from a distance of 4.5 miles (7.2 kilometers), shows jets of dust and gas streaming into space from the neck of the comet’s nucleus.
Images of the comet nucleus, taken by Rosetta earlier in the summer, showed that the distinct jets of dust and gas emanating from the comet were originated from the neck region, which connects the comet’s two lobes. Images obtained by OSIRIS now show jets of dust along almost the entire length of the comet.
Written by Preston Dyches
Pasadena, CA – NASA scientists have identified an unexpected high-altitude methane ice cloud on Saturn’s moon Titan that is similar to exotic clouds found far above Earth’s poles.
This lofty cloud, imaged by NASA’s Cassini spacecraft, was part of the winter cap of condensation over Titan’s north pole. Now, eight years after spotting this mysterious bit of atmospheric fluff, researchers have determined that it contains methane ice, which produces a much denser cloud than the ethane ice previously identified there.
NASA’s Mars Reconnaissance Orbiter takes image revealing that the Nucleus of Comet Siding Spring is Small
Written by Guy Webster
Pasadena, CA – The High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter captured views of comet C/2013 A1 Siding Spring while that visitor sped past Mars on Sunday (October 19th), yielding information about its nucleus.
The images are the highest-resolution views ever acquired of a comet coming from the Oort Cloud at the fringes of the solar system.
Written by Whitney Clavin
Pasadena, CA – 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 place of stellar life. A newly released image from NASA’s Spitzer Space Telescope shows the galaxy NGC 1291.
Though the galaxy is quite old, roughly 12 billion years, it is marked by an unusual ring where newborn stars are igniting.
“The rest of the galaxy is done maturing,” said Kartik Sheth of the National Radio Astronomy Observatory of Charlottesville, Virginia. “But the outer ring is just now starting to light up with stars.”
Written by Preston Dyches
Pasadena, CA – A new study focused on the interior of Saturn’s icy moon Mimas suggests its cratered surface hides one of two intriguing possibilities: Either the moon’s frozen core is shaped something like a football, or the satellite contains a liquid water ocean.
Researchers used numerous images of Mimas taken by NASA’s Cassini mission to determine how much the moon wobbles as it orbits Saturn. They then evaluated several possible models for how its interior might be arranged, finding two possibilities that fit their data.The study is published in the October 17th issue of the journal Science.
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