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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…)

Sun and Planets Constructed Differently, Analysis from Nasa Mission Suggests

The sun and the solar system’s rocky inner planets, including the Earth, may have formed differently than previously thought, according to UCLA scientists and colleagues analyzing samples returned by NASA’s Genesis mission.

The data from Genesis, which collected material from the solar wind blowing from the sun, reveal differences between the sun and planets with regard to oxygen and nitrogen, two of the most abundant elements in our solar system, the researchers report in two studies in the June 24 issue of the journal Science. And although the differences are slight, the research could help determine how our solar system evolved. (more…)

Tag Archives: genesis mission

Searching for the Solar System’s Chemical Recipe

Sun and Planets Constructed Differently, Analysis from Nasa Mission Suggests