'Saddle-shaped' universe could undermine general relativity
May 22, 2017
Researchers have shown how singularities – which are normally only found at the centre of black holes and hidden from view – could exist in highly curved three-dimensional space.
Can we see a singularity, the most extreme object in the universe?
Apr 20, 2017
A team of scientists at the Tata Institute of Fundamental Research (TIFR), Mumbai, India, have found new ways to detect a bare or naked singularity, the most extreme object in the universe.
The aligned spin of a black hole
Aug 01, 2016
A black hole in traditional theory is characterized by having "no hair," that is, it is so simple that it can be completely described by just three parameters, its mass, its spin, and its electric charge. Even though it may ...
Was the Big Bang just a black hole?
Feb 15, 2016
Fraser Cain "Asks a Spaceman" Dr. Paul Matt Sutter – why do we call the Big Bang a singularity, when we also call black holes singularities?
The golden anniversary of black-hole singularity
Oct 01, 2015
When a star collapses forming a black hole, a space-time singularity is created wherein the laws of Physics no longer work. In 1965 Sir Roger Penrose presented a theorem where he associated that singularity with so-called ...
No Big Bang? Quantum equation predicts universe has no beginning
Feb 09, 2015 feature
(Phys.org) —The universe may have existed forever, according to a new model that applies quantum correction terms to complement Einstein's theory of general relativity. The model may also account for dark matter and dark ...
Penrose's and Hawking's early math award revisited
Nov 18, 2014
In 1966, it was Roger Penrose who won the prestigious Adams Prize for his essay "An analysis of the structure of space-time." The Adams Prize – named after the British mathematician John Couch Adams – is awarded each ...
The black hole at the birth of the Universe
Aug 08, 2014
Our universe may have emerged from a black hole in a higher-dimensional universe, propose a trio of Perimeter Institute researchers.
Soap films with complex shapes shed light on the formation of mathematical singularities (w/ Video)
May 27, 2014
(Phys.org) —Soap films with complex shapes shed light on the formation of mathematical singularities, which occur in a broad range of fields.
Astrophysicists duo propose Planck star as core of black holes
Feb 14, 2014 report
(Phys.org) —Two astrophysics, Carlo Rovelli and Francesca Vidotto, have uploaded a paper to the preprint server arXiv in which they suggest that a structure known as a Planck star exists at the center of black holes, rather ...