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Space

Submission + - Speed key to all galaxy formation

QuantumCrypto writes: "The All-wavelength Extended Groth strip International Survey (AEGIS), a collaborative effort involving nearly 100 scientists in half a dozen countries, revealed a new principle in the formation of all galaxies, from disk-like spirals, cloud-like ellipticals, and just irregulars. In essence the morphology of the galaxies depends on total mass involved and the internal speed it generates. "By defining a new speed indicator, their analysis has managed to make sense out of very chaotic-looking objects", said Sandra Faber, professor of astronomy and astrophysics at the University of California, Santa Cruz."

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