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Cassini Sees Saturn and Moons in Holiday Dress

This holiday season, feast your eyes on images of Saturn and two of its most fascinating moons, Titan and Enceladus, in a care package from NASA’s Cassini spacecraft. All three bodies are dressed and dazzling in this special package assembled by Cassini’s imaging team.

“During this, our tenth holiday season at Saturn, we hope that these images from Cassini remind everyone the world over of the significance of our discoveries in exploring such a remote and beautiful planetary system,” said Carolyn Porco, Cassini imaging team leader, based at the Space Science Institute, Boulder, Colo. “Happy holidays from all of us on Cassini.” (more…)

Searching for the Solar System’s Chemical Recipe

By Guest PostMarch 4, 2013Scienceasteroids, basic ingredients, beams of vuv, carbon monoxide, clouds, comets, dust, elements, gas molecules, gas phase photodynamics, genesis mission, hydrogen sulfide, interplanetary ice, isotope ratios, isotopic differences, john heidenreich, mark thiemens, mass spectrometry, mean ocean water, moons, musahid musa ahmed, nanometer wavelength range, NASA, nitrogen, one extra neutron, origin, oxygen 17, oxygen isotope puzzle, photochemistry, physical factors, planets, primitive solar nebula, raindrops, san diego, smow, solar system recipe, standard, subrata chakraborty, teresa jackson, ultraclean aluminum foil, university of california, vacuum ultraviolet light, vuv wavelengths, x axis, y axis

Berkeley Lab’s Chemical Dynamics Beamline points to why isotope ratios in interplanetary dust and meteorites differ from Earth’s

By studying the origins of different isotope ratios among the elements that make up today’s smorgasbord of planets, moons, comets, asteroids, and interplanetary ice and dust, Mark Thiemens and his colleagues hope to learn how our solar system evolved. Thiemens, Dean of the Division of Physical Sciences at the University of California, San Diego, has worked on this problem for over three decades.

In recent years his team has found the Chemical Dynamics Beamline of the Advanced Light Source (ALS) at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) to be an invaluable tool for examining how photochemistry determines the basic ingredients in the solar system recipe. (more…)

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Cassini Sees Saturn and Moons in Holiday Dress

Searching for the Solar System’s Chemical Recipe