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Flickering Quasars Used To Measure Universe Expansion | Video

Using gravitational lensing, astronomers have imaged distant quasars with the Hubble Space Telescope. They used the imagery to determine that the Universe is expanding quicker that previously thought.

The Universe Is Expanding Faster Than Expected, But New Results Raise More Questions

New observations of lensed quasars show the Universe is expanding faster than expected. But these results raise questions about the assumptions of our cosmological models.

How fast is the universe expanding? Quasars provide an answer

(Ecole Polytechnique Fédérale de Lausanne) The H0LiCOW collaboration, a cosmology project led by EPFL and Max Planck Institute and regrouping several research organizations in the world has made a new measurement of the Hubble constant, which indicates how fast the universe is expanding. Show More Summary

Mysterious faint object detected in the vicinity of a quadruply lensed quasar

(Phys.org)—Astronomers have spotted a mysterious faint object in the vicinity of a quadruply lensed quasar designated MG 0414+0534. The object, which was discovered using the Atacama Large Millimeter/submillimeter Array (ALMA), appears to be a dusty, dark dwarf galaxy or an ultra-diffuse galaxy (UDG). The findings were presented January 19 in a paper published on arXiv.org.

Captain America: Steve Rogers #9

Steve reaches out to a hero that can help — the all-new Quasar! Marvel Comics' Captain America: Steve Rogers #9 by Nick Spencer & Javier Pina. The post Captain America: Steve Rogers #9 appeared first on CBR.com.

Distant Quasars Show That Fundamental Constants Never Change

Even over billions and billions of years, the laws of physics were exactly the same.

‘Youngblood’ And ‘Brigade’ Could Be Joining Other Comic Book Movies In The Near Future

2 months agoHumor / odd : Nerd Bastards

A long time ago, when Costco used to sell comic books in sealed packages ranging from X-Men to Thor to Batman and even Quasar. Who the hell is Quasar? Exactly. Also included in some of those packages were some smaller press comics from a company by the name of Image. Their titles included Youngblood, Brigade, […]

High-redshift quasar discovered by Pan-STARRS

(Phys.org)—A new luminous high-redshift quasar has been detected by one of the telescopes of the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS). The newly discovered quasi-stellar object received designation PSO J006.1240+39.2219 and is the seventh highest redshift quasar known to date. The findings are presented in a paper published Dec. 19 on arXiv.org.

Finding the unknowns in the universe

What have pulsars, quasars, dark matter and dark energy got in common? Answer: each of them took the discoverer by surprise. While much of science advances carefully and methodically, the majority of truly spectacular discoveries in astronomy are unexpected.

'A Cosmic Miracle' --"Behemoth Black Holes of the Early Galaxies Emerged From a Single Central Supermassive Star"

"The quasars observed in the early universe resemble giant babies in a delivery room full of normal infants," observed Avi Loeb of the Harvard–Smithsonian Center for Astrophysics. "One is left wondering: what is special about the environment that nurtured these...        

Light from Ancient Quasars Confirm the Laws of Physics Constant Throughout the Cosmos

Are the laws of nature constant throughout the universe, or do they change depending on where one is? As far as we can tell, the fundamental laws that govern our understanding of reality, including the four fundamental forces — the....

Do extremely reddened quasars extinguish star formation?

Galaxies formed and grew billions of years ago by accumulating gas from their surroundings, or colliding and merging with other young galaxies. These early stages of galaxy assembly are believed to be accompanied by episodes of rapid star formation, known as starbursts, and rapid growth of a single super-massive black hole in the galactic centers.

Do extremely reddened quasars extinguish star formation?

(University of California - Riverside) New research, led by Frederick Hamann, a professor at the Department of Physics and Astronomy at University of California, Riverside, describes the discovery of a unique new population of extremely red quasars. The findings were recently published in the journal the Monthly Notices of the Royal Astronomical Society.

Ancient Quasars Cast Light on Mysteries of the Cosmic Web

An international collaboration of astronomers, led by a group at the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland, has used the unrivalled observing power of MUSE on the Very Large Telescope (VLT) at ESO's Paranal Observatory to study...

ESO's VLT detects unexpected giant glowing halos around distant quasars

(ESO) An international team of astronomers has discovered glowing gas clouds surrounding distant quasars. This new survey by the MUSE instrument on ESO's Very Large Telescope indicates that halos around quasars are far more common than expected. Show More Summary

VLT detects unexpected giant glowing halos around distant quasars

An international collaboration of astronomers, led by a group at the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland, has used the unrivalled observing power of MUSE on the Very Large Telescope (VLT) at ESO's Paranal Observatory to study gas around distant active galaxies, less than two billion years after the Big Bang. Show More Summary

Changes in a distant quasar

Yale astronomers Grant Tremblay and Meredith Powell are part of the first research team to document a "changing look" quasar through a full cycle from dim to bright to dim again.

Number of Known Ancient Quasars Doubles --"Most-Distant Objects in the Universe"

"The formation and evolution of the earliest light sources and structures in the universe is one of the greatest mysteries in astronomy," said Carnegie Institute's Eduardo Bañados. "Very bright quasars such as the 63 discovered in this study are the...

Discovery nearly doubles known quasars from the ancient universe

(Carnegie Institution for Science) Quasars are supermassive black holes that sit at the center of enormous galaxies, accreting matter. They shine so brightly that they are often referred to as beacons and are among the most-distant objects we can currently study. Show More Summary

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