Web laboratory experiment is proposed where the 'student' have to measure the relationship between colour and apparent magnitude for elliptical and some other types of galaxies.
An online scientific paper. A review of the present observational and theoretical status of elliptical galaxies is presented with the aim to clarify whether the monolithic or the hierarchical, is a more viable scenario for the origin of these structures.
The Chandra image provided a surprise to astronomers, since it shows 2 previously unseen spiral arms of extremely hot gas (at a temperature of about 10 million degrees) emanating from the center of this elliptical galaxy.
Many astronomers believe that the large galaxies seen today were formed from smaller "dwarf" galaxies, which formed first after the Big Bang. An article from the Sol Company's website.