Formation of Dwarf Galaxies
Current theory states that most galaxies, including dwarf galaxies, form in association with dark matter or out of gas containing metals. However, NASA's Galaxy Evolution Explorer space probe identified new dwarf galaxies forming out of gases lacking metals. These galaxies were located in the Leo Ring, a cloud of hydrogen and helium around two massive galaxies in the constellation Leo.
Conversely, dwarf galaxies because of their small size have been observed to be pulled toward and ripped by neighbouring spiral galaxies till they ultimately merge.
Read more about this topic: Dwarf Galaxy
Famous quotes containing the words formation of, formation, dwarf and/or galaxies:
“Those who were skillful in Anatomy among the Ancients, concluded from the outward and inward Make of an Human Body, that it was the Work of a Being transcendently Wise and Powerful. As the World grew more enlightened in this Art, their Discoveries gave them fresh Opportunities of admiring the Conduct of Providence in the Formation of an Human Body.”
—Joseph Addison (16721719)
“I want you to consider this distinction as you go forward in life. Being male is not enough; being a man is a right to be earned and an honor to be cherished. I cannot tell you how to earn that right or deserve that honor. . . but I can tell you that the formation of your manhood must be a conscious act governed by the highest vision of the man you want to be.”
—Kent Nerburn (20th century)
“A dwarf who brings a standard along with him to measure his own sizetake my word, is a dwarf in more articles than one.”
—Laurence Sterne (17131768)
“Dont you see whats at stake here? The ultimate aim of all scienceto penetrate the unknown. Do you realize we know less about the earth we live on than about the stars and the galaxies of outer space? The greatest mystery is right here, right under our feet.”
—Walter Reisch (19031963)