Natural Intergalactic Travel
Theorized in 1988, and observed in 2005, there are stars moving faster than the escape velocity of the Milky Way, and are traveling out into intergalactic space. A theory for their existence is that the supermassive black hole at the center of the Milky Way ejects stars from the galaxy at a rate of about one every hundred thousand years. By 2010, sixteen hypervelocity stars had been observed. Intergalactic dust is also thought to be ejected from galaxies, and has been observed in intergalactic space.
Read more about this topic: Intergalactic Travel
Famous quotes containing the words natural and/or travel:
“The wish to acquire more is admittedly a very natural and common thing; and when men succeed in this they are always praised rather than condemned. But when they lack the ability to do so and yet want to acquire more at all costs, they deserve condemnation for their mistakes.”
—Niccolò Machiavelli (1469–1527)
“To get away from one’s working environment is, in a sense, to get away from one’s self; and this is often the chief advantage of travel and change.”
—Charles Horton Cooley (1864–1929)