spiral galaxies

The Evolution of Spiral Galaxies is Now Reexamined

Previous research on the evolution and formation of spiral galaxies have followed a wrong assumption, according to a team of researchers of Instituto de Astrofisica e Ciencias do Espaco (IA). Most spiral galaxies are defined by a disc, in which...
quasar

The Most X-ray Luminous High-redshift Quasar Has Been Spotted

A team of Russian researchers utilized the Spektr-RG (SRG) spacecraft and examined a sample of distant quasi-stellar objects (QSOs), also known as quasars.  The astronomers detected strong X-ray emissions from source CFHQSJ142952+544717, one of the most X-ray luminous high-redshift quasars...