Universe: Giant Black Hole Quasars I have read and seen by top scientists on YouTube videos, black holes. Quasar - Massive Black Hole Этот ролик обработан в Видеоредакторе YouTube (liveuselections.info). Astronomers using Hubble found that Markarian , the nearest galaxy that hosts a quasar, is powered by two central black holes furiously whirling about each. Quasars also provide some clues as to the end of the Big Bang 's reionization. Beginner What happens when an antimatter black hole collides with a matter blackhole? Diese Seite wurde zuletzt am Supermassive black holes, meanwhile, form differently - perhaps from the merger of many smaller black holes early in the universe's history - and grow over the years as they suck in gas from their surroundings. Beginner What type of energy does a black hole have? Intermediate How are light and heavy elements formed? Write your answer here Juni um In a breakthrough was achieved. Several dozen nearby large galaxies, with no sign of a quasar nucleus, have been shown to contain a similar central black hole in their nuclei, so it is thought that all large galaxies have one, but only a small fraction are active with enough accretion to power radiation and so are seen as quasars. Many lines of evidence optical viewing of host galaxies, finding 'intervening' absorption lines, gravitational lensing now demonstrate that the quasar redshifts are due to the Hubble expansion, and quasars are in fact as powerful as first thought. Science Math Social Sciences Humanities. Black holes, quasars and active galaxies The disk of dust and gas accreting around a home fortress solar-mass black hole in NGC Mit der im Jahr gemachten Entdeckung, dass der 1,6 Mrd. Intermediate Can I see a quasar? Fast motions strongly indicate a large mass. Intermediate Is dark energy affected by black holes? Please take the time to browse our site and first try to use the resources online to find an answer to your question. Intermediate When was the last time all of the planets were aligned? Emission lines of hydrogen mainly of the Lyman series and Balmer series , helium, carbon, magnesium, iron and oxygen are the brightest lines. If you have a question about another area of astronomy, find the topic you're interested in from the archive on the side bar or search using the below search form. Read our full guide with examples. Intermediate Why do the planets orbit the sun? The high resolution of Hubble made it possible to see the effects of the gravitational attraction of some of these objects on their surroundings. Black holes, therefore, are some of the brightest objects around. High-resolution images of quasars, particularly from the Hubble Space Telescope , have demonstrated that quasars occur in the centers of galaxies, and that some quasar host galaxies are strongly interacting or merging galaxies. The term "quasar" originated as a contraction of "quasi-stellar radio source", because quasars were first identified as sources of radio-wave emission, and in photographic images at visible wavelengths they resembled point-like stars.