A mysterious “kick” in the early universe may have produced more matter than antimatter. And that imbalance may have also led to the creation of dark matter, researchers now say. Source: https://www.livescience.com/dark-matter-birth-explained.html
Tag: big bang
What do redshifts tell astronomers?
A redshift reveals how an object is moving in space and enables astronomers to discover otherwise-invisible planets and the movements of galaxies, and to uncover the beginnings of our universe. Source: https://earthsky.org/astronomy-essentials/what-is-a-redshift…
A new record for the most distant quasar
Astronomers have a new measurement for the distance of quasar J0313-1806, making it the new record-holder for the most distant quasar known. We’re seeing it just 670 million years after the Big Bang, or more than 13 billion light-years away. Source: https://earthsky.org/space/new-record-most-distant-quasar-black-hole-j0313-1806…
Most distant quasar discovered sheds light on how black holes grow
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 years after the Big Bang, when the universe was only 5% its current age, the quasar hosts a supermassive black hole equivalent to the combined mass of 1.6 billion suns….
A new look at the universe’s oldest light
New work agrees with older research suggesting the oldest light in the universe – from the most distant galaxy yet known – started its journey toward us 13.77 billion years ago. Source: https://earthsky.org/space/a-new-look-at-the-universes-oldest-light…
Roman Space Telescope could image 100 Hubble ultra deep fields at once
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…
Unveiling the double origin of cosmic dust in the distant Universe
Two billion years after the Big Bang, the Universe was still very young. However, thousands of huge galaxies, rich in stars and dust, were already formed. An international study, led by SISSA—Scuola Internazionale Superiore di Studi Avanzati, now explains how this was possible. Scientists combined observational and theoretical methods to identify the physical processes behind their evolution and, for the first…
New and rare direct image of a brown dwarf
Astronomers have obtained one of the best images yet of a brown dwarf, an object in a mass range midway between stars and planets. This brown dwarf – called HD 33632 Ab – lies 86 light-years from our sun. Source: https://earthsky.org/space/new-brown-dwarf-direct-image-hd-33632-ab…
Are primordial black holes really giant gravitinos?
New research proposes that the first black holes came from clumps of gravitinos, exotic, hypothetical particles that managed to survive the first chaotic years of the Big Bang. Source: https://www.livescience.com/primordial-black-holes-giant-gravitinos
We may have seen a huge explosion in the oldest galaxy in the universe
An explosion of high-energy radiation may have been spotted coming from a galaxy in the distant universe – a gamma-ray burst that occurred just 400 million years after the big bang Source: https://www.newscientist.com/article/2262665-we-may-have-seen-a-huge-explosion-in-the-oldest-galaxy-in-the-universe/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…