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:
“... the mass migrations now habitual in our nation are disastrous to the family and to the formation of individual character. It is impossible to create a stable society if something like a third of our people are constantly moving about. We cannot grow fine human beings, any more than we can grow fine trees, if they are constantly torn up by the roots and transplanted ...”
—Agnes E. Meyer (18871970)
“The formation of an oppositional world view is necessary for feminist struggle. This means that the world we have most intimately known, the world in which we feel safe ... must be radically changed. Perhaps it is the knowledge that everyone must change, not just those we label enemies or oppressors, that has so far served to check our revolutionary impulses.”
—Bell (c. 1955)
“When I lie down to love,
old dwarf heart shakes her head.
Like an imbecile she was born old.”
—Anne Sexton (19281974)
“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)