Explanation: Is our Milky Way Galaxy out to lunch? Recent wide field images and analyses now indicate that our home galaxy is actually still in the process of devouring its closest satellite neighbor. This unfortunate neighbor, the Sagittarius Dwarf galaxy, is now seen to be part of a larger Sagittarius Tidal Stream, a loose filament of stars, gas, and possibly dark matter that entangles the Milky Way. An artist's depiction of the stream is shown above. Speculation also holds that the Sagittarius Dwarf was once pulled through the Milky Way disk very close to our Sun's current location. An important resulting realization is that galaxies contain a jumble of clumps and filaments of both dim and dark matter.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Milky Way - interacting galaxies - Mlechnyi Put' - vzaimodeistvuyushie galaktiki Publikacii so slovami: Milky Way - interacting galaxies - Mlechnyi Put' - vzaimodeistvuyushie galaktiki
Sm. takzhe: Zima i leto na malen'koi planete Puteshestvie k centru Galaktiki Galaktiki s obolochkami v Rybah Mlechnyi Put' nad ostrovom Pashi Mlechnyi Put' za tremya zubcami Mlechnyi Put' nad Tunisom Gaiya: vot poyavlyaetsya Solnce Vse publikacii na tu zhe temu >>