Chinese astronomers measure geometric distance to the quasar 3C 273

Since the discovery of quasars more than a half a century ago, measuring their distances has always been a fundamental problem for cosmology. Recently, a team led by Professor Jian-Min Wang from the Institute of High Energy Physics of the Chinese Academy of Sciences (CAS) developed a new geometric method and successfully measured the cosmological … Read more Chinese astronomers measure geometric distance to the quasar 3C 273

Space dragons: Researchers observe energy consumption in quasars

Quasars are the Universe’s brightest beacons; shining with magnitudes more luminosity than entire galaxies and the stars they contain. In the center of this light, at the heart of a quasar, researchers think, is an all-consuming black hole. Researchers, for the first time, have observed the accelerated rate at which eight quasars consume interstellar fuel … Read more Space dragons: Researchers observe energy consumption in quasars