Tag Archives: sagittarius

A rare crash at the Milky Way’s core: U-Michigan astronomers could be the first to see it

By Guest PostJanuary 10, 2014Scienceconstellation, core, g2, galactic center, galaxy by spring, gaseous g2 object, mark reynolds, Milky Way, mysterious gas cloud, NASA, nathalie degenaar, rare collision, sagittarius, scorpius, supermassive black hole, swift telescope, u michigan astronomers, university of michigan, xray wavelengths

ANN ARBOR — University of Michigan astronomers could be the first to witness a rare collision expected to happen at the center of the galaxy by spring.

With NASA’s orbiting Swift telescope, the U-M team is taking daily images of a mysterious gas cloud about three times the mass of Earth that’s spiraling toward the supermassive black hole at the Milky Way’s core. From our vantage point, the core lies more than 25,000 light years away in the southern summer sky near the constellations Sagittarius and Scorpius. (more…)

UCLA Astronomers Discover Star Racing Around Black Hole at Center of Our Galaxy

By Guest PostOctober 6, 2012Scienceandrea ghez, black hole, collapse of matter, galactic center group, gravitational pull, high density, keck observatory, leo meyer, milky way galaxy, sagittarius, supermassive black hole, taft armandroff, ucla

Discovery crucial to revealing fabric of space and time around black hole

UCLA astronomers report the discovery of a remarkable star that orbits the enormous black hole at the center of our Milky Way galaxy in a blistering 11-and-a-half years — the shortest known orbit of any star near this black hole. (more…)