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First Quasar Gravitational Lens Discovered (w/video)
The quasi-stellar object SDSS J0013+1523 has been shown to warp the light of a background galaxy around it, producing a magnified double-image from our perspective on Earth. Image Credit: Courbin,...
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What Is A Quasar
Artist illustration of a quasar with jets. In order to understand what is a quasar, it helps to know what ‘quasar’ stands for. The word quasar stands for quasi-stellar radio source. They are the...
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What Hanny’s Voorwerp Reveals About Quasar Deaths
Hanny’s Voorwerp is a popular topic of conversation due to its novel discovery by Hanny Van Arkel perusing images from the Galaxy Zoo project. The tale has become so well known, it was made into a...
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What Are Quasars
A color composite image of the quasar in HE0450-2958 obtained using the VISIR instrument on the Very Large Telescope and the Hubble Space Telescope. Image Credit: ESOThe answer to what are quasars is...
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Most Distant Quasar Opens Window Into Early Universe
QuasarAstronomers have uncovered yet another clue in their quest to understand the Universe’s early life: the most distant quasar ever observed. At a redshift of 7.1, it is a relic from when the cosmos...
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Black Hole Secrets… Water Vapor Gives Clues To Star Formation
Artist's Concept of Water Vapor in Black Hole Disk - Credit: Leiden University A eye-opening discovery has been made by an international team of scientists led by astronomer Paul van der Werf (Leiden...
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Emerging Supermassive Black Holes Choke Star Formation
The LABOCA camera on the ESO-operated 12-metre Atacama Pathfinder Experiment (APEX) telescope reveals distant galaxies undergoing the most intense type of star formation activity known, called a...
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Early Black Holes were Grazers Rather than Glutonous Eaters
Black holes powering distant quasars in the early Universe grazed on patches of gas or passing galaxies rather than glutting themselves in dramatic collisions according to new observations from NASA’s...
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Looking Into the Heart of a Quasar
Caption: Artist’s impression of the quasar 3C 279. Credit: ESO/M. Kornmesser From an ESO press release: An international team of astronomers has observed the heart of a distant quasar with...
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Ancient Quasar Shines Brightly, But All the Galaxy’s Stars Are Missing
Hubble Space Telescope image of J1148+5251. Credit: NASA/ESA/M. Mechtley, R. Windhorst, Arizona State University Quasars have been the best and most easily observed beacons for astronomers to probe...
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Caught in the Act! Merging Galaxies Create a Binary Quasar
SDSS J1254+0846 in x-rays (blue), and optical (yellow) (Credits: X-ray: NASA/CXC/SAO/Green et al Optical: Carnegie Obs/Magellan/Baade Telescope/Mulchaey et al) Excellent teamwork by astronomers working...
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Jets Boost — Not Hinder — Star Formation in Early Galaxies, New Study Suggests
An artist’s conception of jets protruding from an AGN. Image Credit: ESO Understanding the formation of stars and galaxies early in the Universe’s history continues to be somewhat of an enigma, and a...
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Weekly Space Hangout – March 7, 2014: Cosmos Premiere & NASA Budget
Host: Fraser Cain Astrojournalists: David Dickinson, Matthew Francis, Casey Dreier, Jason Major, Brian Koberlein, Alan Boyle This week’s stories: Alan Boyle (@b0yle, cosmiclog.com ): Cosmos premiere!...
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Quasars Tell The Story Of How Fast The Young Universe Expanded
Artist’s conception of how the Baryon Oscillation Spectroscopic Survey uses quasars to make measurements. The light these objects sends out gets absorbed by gas in between the receiver and the source....
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Three Supermassive Black Holes Tango in a Distant Galaxy, Marking a Huge...
In this trio, the two close-in supermassive black holes emit helical jets, whereas the third more distant black hole emits relatively straight jets. Image Credit: Roger Deane (large image) / NASA...
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Supermassive Black Hole Blasting Molecular Hydrogen Solves Outstanding Mystery
An artist’s conception of a supermassive black hole’s jets. Image Credit: NASA / Dana Berry / SkyWorks Digital The supermassive black holes in the cores of most massive galaxies wreak havoc on their...
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How did Supermassive Black Holes Grow so Massive so Quickly?
An artist’s conception of a swirling accretion disk around a black hole. Credit: NASA / Dana Berry / SkyWorks Digital Black holes one billion times the Sun’s mass or more lie at the heart of many...
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What Lit up the Universe? Astronomers May be on the Brink of an Answer
A computer model shows one scenario for how light is spread through the early universe on vast scales (more than 50 million light years across). Astronomers will soon know whether or not these kinds of...
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Distant Galaxies Reveal 3D Cosmic Web for the First Time
A 3D map of the cosmic web at a distance of 10.8 billion light years from Earth. Credit: Casey Stark (UC Berkeley) and Khee-Gan Lee (MPIA) On the largest scales, networks of gaseous filaments span...
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When Two Supermassive Black Holes Merge, It’s a Galactic Train Wreck
An artist’s conception of a black hole binary in a heart of a quasar, with the data showing the periodic variability superposed. Image Credit: Santiago Lombeyda / Caltech Center for Data-Driven...
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