The spectra of these objects were so odd, they prompted some astronomers to attempt to redefine redshift. Others suspected they were "white holes," spewing forth energy from elsewhere in the universe. While 99 percent of them are "radio quiet," it was a rather noisy one - 3C 273 - that led to their first optical observations. FTP, name these extra-galactic objects with amazingly high redshift that astronomers now suspect are black holes devouring galaxies.
The spectra of these objects were so odd, they prompted some astronomers to attempt to redefine redshift. Others suspected they were "white holes," spewing forth energy from elsewhere in the universe. While 99 percent of them are "radio quiet," it was a rather noisy one - 3C 273 - that led to their first optical observations. FTP, name these extra-galactic objects with amazingly high redshift that astronomers now suspect are black holes devouring galaxies.
The spectra of these objects were so odd, they prompted some astronomers to attempt to redefine redshift.
{quasar}s or {quasi-stellar object}