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Quasar discovery sets new distance record

An international team of astronomers has discovered the most distant quasar yet found -- a cosmic monster more than 13 billion light-years from Earth powered by a supermassive black hole more than 1.6 billion times more massive than the Sun and more than 1,000 times brighter than our entire Milky Way Galaxy. The quasar, called J0313-1806, is seen as it was when the Universe was…

‘Old Faithful’ cosmic eruption shows black hole ripping at star

You've heard of Old Faithful, the Yellowstone National Park geyser that erupts every hour or two, a geological phenomenon on a nearly predictable schedule. Now, an international group of scientists who study space have discovered an astronomical "Old Faithful" - an eruption of light flashing about once every 114 days on a nearly predictable schedule. The researchers believe it is a tidal disruption event, a…

The earliest supermassive black hole and quasar in the universe

IMAGE: An artist's impression of quasar J0313-1806 showing the supermassive black hole and the extremely high velocity wind. The quasar, seen just 670 million years after the Big Bang, is 1000... view more  Credit: NOIRLab/NSF/AURA/J. da Silva Maunakea, Hawaii - The most distant quasar known has been discovered. The quasar, seen just 670 million years after the Big Bang, is 1000 times more luminous than the…

Most distant quasar discovered sheds light on how black holes grow

IMAGE: An international team of astronomers have discovered the most distant quasar in the Universe, fully formed around 670 million years after the Big Bang. view more  Credit: Artist illustration: NOIRLab/NSF/AURA/J. da Silva A team of astronomers led by the University of Arizona has observed a luminous quasar 13.03 billion light-years from Earth - the most distant quasar discovered to date. Dating back to 670 million…

Ten “keys to reality” from Nobel laureate Frank Wilczek

In the spring of 1970, colleges across the country erupted with student protests in response to the Vietnam War and the National Guard's shooting of student demonstrators at Kent State University. At the University of Chicago, where Frank Wilczek was an undergraduate, regularly scheduled classes were "improvised and semivoluntary" amid the turmoil, as he recalls. It was during this turbulent time that Wilczek found unexpected…

ALMA captures distant colliding galaxy dying out as it loses the...

IMAGE: This artist's impression of ID2299 shows the galaxy, the product of a galactic collision, and some of its gas being ejected by a "tidal tail " as a result of the... view more  Credit: ESO/M. Kornmesser Galaxies begin to "die" when they stop forming stars, but until now astronomers had never clearly glimpsed the start of this process in a far-away galaxy. Using the Atacama…

Roman Space Telescope could image 100 Hubble ultra deep fields at...

One of the Hubble Space Telescope's most iconic images is the Hubble Ultra Deep Field, which unveiled myriad galaxies across the universe, stretching back to within a few hundred million years of the Big Bang. Hubble peered at a single patch of seemingly empty sky for hundreds of hours beginning in September 2003, and astronomers first unveiled this galaxy tapestry in 2004, with more observations…

Arecibo observatory helps find possible ‘first hints’ of low-frequency gravitational waves

ORLANDO, Jan. 11, 2021 - Data from Arecibo Observatory in Puerto Rico has been used to help detect the first possible hints of low-frequency disturbances in the curvature of space-time. The results were presented today at the 237th meeting of the American Astronomical Society, which was held virtually, and are published in The Astrophysical Journal Letters. Arecibo Observatory is managed by the University of Central…

Measurements of pulsar acceleration reveal Milky Way’s dark side

IMAGE: The ripples in the Milky Way disk are shown, along with the tidal debris from the Sagittarius dwarf galaxy. The pulsars analyzed by Chakrabarti et al 2021 to calculate... view more  Credit: IAS; Dana Berry It is well known that the expansion of the universe is accelerating due to a mysterious dark energy. Within galaxies, stars also experience an acceleration, though this is due to…

‘Galaxy-sized’ observatory sees potential hints of gravitational waves

Scientists have used a "galaxy-sized" space observatory to find possible hints of a unique signal from gravitational waves, or the powerful ripples that course through the universe and warp the fabric of space and time itself. The new findings, which appeared recently in The Astrophysical Journal Letters, hail from a U.S. and Canadian project called the North American Nanohertz Observatory for Gravitational Waves (NANOGrav). For…
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