Topic: NASA’s Cassini Spacecraft
Written by Jia-Rui C. Cook
Pasadena, CA – Water vapor above the frigid south polar region of Jupiter’s moon Europa has observed by NASA’s Hubble Space Telescope, providing the first strong evidence of water plumes erupting off the moon’s surface.
Previous scientific findings from other sources already point to the existence of an ocean located under Europa’s icy crust. Researchers are not yet fully certain whether the detected water vapor is generated by erupting water plumes on the surface, but they are confident this is the most likely explanation.
NASA’s Cassini Spacecraft captures image that shows Saturn, its moons and rings, plus Earth, Venus and Mars
Sweeps nearly 405,000 miles across Saturn and its inner rings
Pasadena, CA – NASA has released a natural-color image of Saturn from space, the first in which Saturn, its moons and rings, and Earth, Venus and Mars, all are visible.
The new panoramic mosaic of the majestic Saturn system taken by NASA’s Cassini spacecraft, which shows the view as it would be seen by human eyes, was unveiled at the Newseum in Washington on Tuesday.
Written by Jia-Rui Cook
Pasadena, CA – It’s a view as good as gold. A loop high above Saturn by NASA’s Cassini spacecraft revealed this stately view of the golden-hued planet and its main rings. The observation and resulting image mosaic were planned as one of three images for Cassini’s 2013 Scientist for a Day essay contest.
The contest challenges students to study three possible targets and write about which one they think will yield the best science. Today is the last day for U.S. submissions and the Cassini mission has already started working on picking the best essays.
Written by Whitney Clavin
Pasadena, CA – Planets rich in carbon, including so-called diamond planets, may lack oceans, according to NASA-funded theoretical research.
Our sun is a carbon-poor star, and as result, our planet Earth is made up largely of silicates, not carbon. Stars with much more carbon than the sun, on the other hand, are predicted to make planets chock full of carbon, and perhaps even layers of diamond.
By modeling the ingredients in these carbon-based planetary systems, the scientists determined they lack icy water reservoirs thought to supply planets with oceans.
Written by Jia-Rui Cook
Pasadena, CA – With the sun now shining down over the north pole of Saturn’s moon Titan, a little luck with the weather, and trajectories that put the spacecraft into optimal viewing positions, NASA’s Cassini spacecraft has obtained new pictures of the liquid methane and ethane seas and lakes that reside near Titan’s north pole.
The images reveal new clues about how the lakes formed and about Titan’s Earth-like “hydrologic” cycle, which involves hydrocarbons rather than water.
Written by Jia-Rui Cook
Pasadena, CA – The gauzy rings of Saturn and the dark side of the planet glow in newly released infrared images obtained by NASA’s Cassini spacecraft.
“Looking at the Saturn system when it is backlit by the sun gives scientists a kind of inside-out view of Saturn that we don’t normally see,” said Matt Hedman, a participating scientist based at the University of Idaho, Moscow, Idaho. “The parts of Saturn’s rings that are bright when you look at them from backyard telescopes on Earth are dark, and other parts that are typically dark glow brightly in this view.”
Pasadena, CA – NASA’s Cassini spacecraft has found propylene, a chemical used to make food-storage containers, car bumpers and other consumer products, on Saturn’s moon Titan.
This is the first definitive detection of the plastic ingredient on any moon or planet, other than Earth.
A small amount of propylene was identified in Titan’s lower atmosphere by Cassini’s composite infrared spectrometer (CIRS). This instrument measures the infrared light, or heat radiation, emitted from Saturn and its moons in much the same way our hands feel the warmth of a fire.
NASA along with the U.S. Department of Homeland Security Test new Finding Individuals for Disaster and Emergency Response (FINDER) Technology
Pasadena, CA – NASA and the U.S. Department of Homeland Security are collaborating on a first-of-its-kind portable radar device to detect the heartbeats and breathing patterns of victims trapped in large piles of rubble resulting from a disaster.
The prototype technology, called Finding Individuals for Disaster and Emergency Response (FINDER) can locate individuals buried as deep as 30 feet (about 9 meters) in crushed materials, hidden behind 20 feet (about 6 meters) of solid concrete, and from a distance of 100 feet (about 30 meters) in open spaces.
Pasadena, CA – A monster storm that erupted on Saturn in late 2010 – as large as any storm ever observed on the ringed planet — has already impressed researchers with its intensity and long-lived turbulence.
A new paper in the journal Icarus reveals another facet of the storm’s explosive power: its ability to churn up water ice from great depths. This finding, derived from near-infrared measurements by NASA’s Cassini spacecraft, is the first detection at Saturn of water ice. The water originates from deep in Saturn’s atmosphere.
Pasadena, CA – An analysis of gravity and topography data from the Saturnian moon Titan obtained by NASA’s Cassini spacecraft suggests there could be something unexpected about the moon’s outer ice shell.
The findings, published on August 28th in the journal Nature, suggest that Titan’s ice shell could be rigid, and that relatively small topographic features on the surface could be associated with large ice “roots” extending into the underlying ocean.
Now playing at the Movies
Showtime information provided by Discover Clarksville.
© 2006-2010 Clarksville, TN Online is owned and operated by residents of Clarksville Tennessee.