... to spot these motions of nearby stars. Instead, a team from Dresden University of Technology, Germany, used the movements of quasars in extremely distant galaxies to calculate the velocity. After trawling through the Gaia Data, the team identified...
... have not superseded but only provided much new material for space artists. Black holes, pulsars, quasars and hundreds of extrasolar planets; as each new space probe or satellite sends back its data, and each...
..., about 1.38 billion light-years (2005); distance from the Earth is about 1.2 billion light-years Huge Large Quasar Group (shining nuclei of galaxies), about four billion light-years (2013); distance from the Earth is about...
... the extraction of energy from a rotating black hole and is one of the best explanations for the way quasars are powered. With scientific runs at increasing levels of sensitivity now being planned for the U.S.-based LIGO...
The discovery of very bright quasars, (with luminosities ≥1047 ergs−1, at z ≃ 6*1) in the Sloan Digital Sky Survey (SDSS) suggests that some supermassive black ...
... Milky Way galaxy 28 thousand light years away, while the most distant one known can be found in a quasar galaxy billions of light years away. To determine the actual mass of a supermassive black hole, researchers measure the...