Quasars are the most luminous objects in the universe and are powered by material accreting onto supermassive black holes at the centers of galaxies. Studies have shown that early-universe quasars ...

Chinese astronomers have investigated quasar candidates from the DESI Legacy Surveys (DESI-LS) photometry catalog. As a ...

Using the Spektr-RG (SRG) space observatory, astronomers from the Russian Academy of Sciences have inspected a radio-loud ...

If dark energy ebbs with time, which now seems plausible, the universe could one day stop expanding and then eventually ...

Active Galactic Nuclei (AGN) and their more luminous counterparts, quasars, are some of the most extreme and highly luminous objects in the Universe. Active Galactic Nuclei (AGN) emit at least as much ...

UC Riverside Astronomy Lecturer, Dr. Marie Wingyee Lau hosted a Skylark Speaker Series lecture about Quasars, and how they ...

Quasars--accreting supermassive black holes--are paradoxically some of the brightest objects in the universe. Astronomers widely consider the energy from quasars to be the main driver in limiting ...

BEIJING, April 18 (Xinhua) -- A group of astronomers has found over 1,300 new quasars behind the Galactic plane by using China's Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST ...

"Three quarters of these sources are quasars and galaxies with active nuclei (these are supermassive black holes with masses of 10 to 100 million solar masses). The remaining 250,000 sources include ...