Black Holes At The Galactic Center
By using the high resolution of the Keck telescope in the infrared, Ghez and her colleagues have been able to peer into the dark center of our galaxy. They have discovered many stars in highly elliptical orbits around the huge black hole there. This graphic shows the partial orbits of many stars orbiting the black hole at the Galactic Center. Since 1995, object SO-2 has made almost a complete elliptical orbit. The graphic was made from snapshots of the position of the various stars over the last decade. Several decades more will be required to complete the orbits of some of these stars. in October 2012, a second star was identified by her team at UCLA, S0-102, orbiting the Galactic Center.
Read more about this topic: Andrea M. Ghez
Famous quotes containing the words black, holes, galactic and/or center:
“Today masses of black women in the U.S. refuse to acknowledge that they have much to gain by feminist struggle. They fear feminism. They have stood in place so long that they are afraid to move. They fear change. They fear losing what little they have.”
—bell hooks (b. c. 1955)
“Why are all these dolls falling out of the sky?
Was there a father?
Or have the planets cut holes in their nets
and let our childhood out,
or are we the dolls themselves,
born but never fed?”
—Anne Sexton (1928–1974)
“In sci-fi convention, life-forms that hadn’t developed space travel were mere prehistory—horse-shoe crabs of the cosmic scene—and something of the humiliation of being stuck on a provincial planet in a galactic backwater has stayed with me ever since.”
—Barbara Ehrenreich (b. 1941)
“When the landscape buckles and jerks around, when a dust column of debris rises from the collapse of a block of buildings on bodies that could have been your own, when the staves of history fall awry and the barrel of time bursts apart, some turn to prayer, some to poetry: words in the memory, a stained book carried close to the body, the notebook scribbled by hand—a center of gravity.”
—Adrienne Rich (b. 1929)