Quasars

Chandra X-ray Telescope Uncovers Evidence Of The Universe’s Missing Matter

Where is all of the matter in the universe? NASA's Chandra telescope has uncovered evidence of hot gas strands in the vicinity of a quasar which could explain the missing third of matter which has puzzled astronomers for years. The post Chandra...
Related topics: Telescopes, Space, NASA

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Astronomers Use Split Images Of Quasars To Produce A New Estimate Of The Hubble Constant

The question of how quickly the universe is expanding has been bugging astronomers for almost a century. Different studies keep coming up with different answers—which has some researchers wondering if they've overlooked a key mechanism in the...
Related topics: Space, Telescopes, Hubble Space Telescope

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Brightest Quasar Ever Seen Discovered By Hubble, May Be Star-producing Machine

The brightest quasar even seen has been observed with the Hubble Space Telescope using a technique called strong gravitational lensing. The quasar is enormously energetic and may be producing thousands of stars per year. The post Brightest quasar...
Related topics: Scientific Discoveries, Telescopes, Hubble Space Telescope, Space

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Cosmic Telescope Zooms In On The Beginning Of Time

Observations from Gemini Observatory identify a key fingerprint of an extremely distant quasar, allowing astronomers to sample light emitted from the dawn of time. Astronomers happened upon this deep glimpse into space and time thanks to a...
Related topics: Telescopes, Space

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Astronomers Have Just Discovered The Brightest Quasar In The Early Universe

In an incredible discovery, astronomers have spotted the brightest quasar to ever be seen in the early universe. Dubbed J043947.08+163415.7, this fantastic object lit up the cosmos at a time when the universe was less than 1-billion-years-old,...
Related topics: Space, Scientific Discoveries

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This Distant Light In Space Is From The 'dawn Of Time'

It's called a quasar and it's located so far away from Earth that the light being seen now was emitted shortly after the Big Bang occurred.        
Related topics: Big Bang

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Light From Dawn Of Time Discovered

An extremely distant quasar has been discovered, one that astronomers say emits light from the dawn of time, a new study suggests.        
Related topics: Scientific Discoveries, Space

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Unexpectedly Vanishing Quasars Are Mystifying Scientists

Some quasars, powered by supermassive black holes, have been shutting down ahead of schedule. A sort of "murder-suicide pact" could explain it.
Related topics: Black Holes

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Photons, Quasars And The Possibility Of Free Will

Flickers of light from the edge of the cosmos help physicists advance the idea that the future is not predetermined -- Read more on ScientificAmerican.com
Related topics: Physics

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Astronomers May Have Just Caught A Black Hole Eating A Star

At vast cosmic distances, supermassive black holes called quasars gobble up matter into accretion disks that shine so brightly, they overpower the light from entire galaxies. Closer to home, compact objects called microquasars give astronomers a...
Related topics: Space, Black Holes, Galaxies

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Light From Ancient Quasars Helps Confirm Quantum Entanglement

Results are among the strongest evidence yet for “spooky action at a distance.” Read More
Related topics: Quantum, Physics

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Superbright Quasar Could Shed Light On Universe's Youth

A newfound quasar is blasting out the brightest radio emissions ever observed in the early universe, new research reports.

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Observations Identify Three Different Activity Periods In The Quasar 3c 279

An international team of astronomers has conducted multi-wavelength photometric and spectropolarimetric observations of the quasar 3C 279, which revealed three different activity periods in this object. The finding is reported in a paper published...
Related topics: Space

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When Evenly Matched Galaxies Collide, They Ignite 2 Blazing Quasars

Violent collisions between two galaxies of equal sizes are more likely to power up both of the supermassive black holes at the galactic centers.
Related topics: Galaxies, Space, Black Holes

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Two Bright High-redshift Quasars Discovered

Astronomers have detected two new bright quasars at a redshift of about 5.0. The newly found quasi-stellar objects (QSOs) are among the brightest high-redshift quasars known to date. The finding was presented May 9 in a paper published on the arXiv...
Related topics: Scientific Discoveries, Space

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Gaia Turns Up 13,928 White Dwarfs Nearby The Sun, Including Several Formed Through Mergers

In 2013, the European Space Agency (ESA) deployed the Gaia mission, a space observatory designed to measure the positions of movements of celestial bodies. For the past four years, Gaia has been studying distant stars, planets, comets, asteroids,...
Related topics: Sun, European Space Agency, Space, Comets, Asteroids

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Double Or Nothing—astronomers Rethink Quasar Environment

Using Hyper Suprime-Cam (HSC) mounted on the Subaru Telescope, astronomers have identified nearly 200 "protoclusters," the progenitors of galaxy clusters, in the early universe, about 12 billion years ago, about ten times more than previously known....
Related topics: Space, Telescopes, Galaxies

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Quasars: Brightest Objects In The Universe

These powerful objects offer a glimpse into the origins of the universe.

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Behold The Mighty Quasar: The Science Behind These Galactic Lighthouses

We all know about powerful supernova blasts — but compared to quasars and their brighter cousins, blazars, they're peanuts.
Related topics: Supernova

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Quasar Outflows May Create Molecules, As Well As Destroying Them

Feedback in active galaxies is more complex than previously thought
Related topics: Galaxies, Space

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