Neutrons’ ‘evil twins’ may be crushing stars into black holes

The universe may be filled with “mirror” particles — and these otherwise-undetectable particles could be shrinking the densest stars in the universe, turning them into black holes, a new study suggests.  These hypothetical evil twins of ordinary particles would experience a flipped version of the laws of physics, as if the rules that govern known […]

50 years ago, scientists poked holes in polywater| Science News

an illustration of the molecular structure of water

By the sweat of their brow — Science News, January 23, 1971 Polywater, or anomalous water, has provoked a continuing controversy among chemists. It is hard enough to believe that water can assume a form as viscous as molasses and have an atomic weight several times that of an ordinary molecule of water.… From the […]

Galaxies hit single, doubles, and triple (growing black holes)

IMAGE: This pair of objects comes from a study of seven triple galaxy mergers. By using Chandra and other telescopes, astronomers determined what happened to the supermassive black holes at the centers of… view more  Credit: X-ray: NASA/CXC/Univ. of Michigan/A. Foord et al.; Optical: SDSS & NASA/STScI When three galaxies collide, what happens to the huge […]

Could we harness energy from black holes? A new study indicates energy can be extracted from black holes through reconnection of magnetic field lines — ScienceDaily

A remarkable prediction of Einstein’s theory of general relativity — the theory that connects space, time, and gravity — is that rotating black holes have enormous amounts of energy available to be tapped. For the last 50 years, scientists have tried to come up with methods to unleash this power. Nobel physicist Roger Penrose theorized […]

Are primordial black holes really giant gravitinos?

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of Ask a Spaceman and Space Radio, and author of How to Die in Space. He contributed this article to’s Expert Voices: Opinions and Insights. Astronomers don’t understand the origins of the biggest black holes in the universe. These […]

Primordial black holes and the search for dark matter from the multiverse

Fig1. Baby universes branching off of our universe shortly after the Big Bang appear to us as black holes. (Credit:Kavli IPMU) The Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) is home to many interdisciplinary projects which benefit from the synergy of a wide range of expertise available at the institute. […]

Ultra-fast gas flows through tiniest holes in 2-D membranes

Researchers identify ultra-fast gas flows through atomic-scale apertures in 2D membrane and validate a century-old equation of fluid dynamics. Credit: N Hassani & M N-Amal, Shahid Rajee University Researchers from the National Graphene Institute at the University of Manchester and the University of Pennsylvania have identified ultra-fast gas flows through the tiniest holes in one-atom-thin […]

World’s largest atom smasher could seed microscopic black holes

The cosmos may be studded with black holes so tiny they could slip in between atoms, a wild new theory suggests. And we could be making these teensy singularities all the time at the world’s largest atom smasher, a new study shows. If we could make these objects, they could be a window into the […]

Black holes may not exist, but fuzzballs might, wild theory suggests

Black holes are, by far, the most mysterious objects in the universe. They are objects in the cosmos where all of our knowledge of physics completely breaks down.  And yet, despite their apparent impossibility, they exist. But what if these gravitational monsters aren’t black holes at all, but rather the cosmic equivalent of fuzzy, vibrating […]