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A Galactic Magnetic Field in A Lab Bolsters Astrophysical Theory

By Guest PostFebruary 2, 2012Scienceastrophysics, asymmetrical shockwave, biermann battery process, biermann process, charged particle, clouds of gas, electric current, french laboratory, Galaxy, german astronomer, high energy pulsed lasers, intergalactic medium, magnetic field, motion, oxford university, particle gas, paul drake, plasma, theory, universe, university of michigan

ANN ARBOR, Mich.— Why is the universe magnetized? It’s a question scientists have been asking for decades. Now, an international team of researchers including a University of Michigan professor have demonstrated that it could have happened spontaneously, as the prevailing theory suggests.

The findings are published in the Jan. 26 edition of Nature. Oxford University scientists led the research. (more…)

Spitzer Sees Crystal ‘Rain’ in Outer Clouds of Infant Star

By Guest PostMay 30, 2011Scienceastronomers, bill danchi, charles poteet, clouds of gas, comets, constellation orion, crystals, deep impact missions, embryonic star, forsterite crystals, green mineral, herschel space observatory, hops 68, NASA, ohio, olivine, protostar, rain, solar system, spitzer space telescope, star, stardust, tom megeath, university of toledo, young stars

PASADENA, Calif. –– Tiny crystals of a green mineral called olivine are falling down like rain on a burgeoning star, according to observations from NASA’s Spitzer Space Telescope.

This is the first time such crystals have been observed in the dusty clouds of gas that collapse around forming stars. Astronomers are still debating how the crystals got there, but the most likely culprits are jets of gas blasting away from the embryonic star. (more…)

Tag Archives: clouds of gas

A Galactic Magnetic Field in A Lab Bolsters Astrophysical Theory

Spitzer Sees Crystal ‘Rain’ in Outer Clouds of Infant Star