Chemistry in the turbulent interstellar medium

NOVEMBER 22, 2019 by Harvard-Smithsonian Center for Astrophysics Over 200 molecules have been discovered in space, some (like Buckminsterfullerene) very complex with carbon atoms. Besides being intrinsically interesting, these molecules radiate away heat, helping giant clouds of interstellar material cool and contract to form new stars. Moreover, astronomers use the radiation from these molecules to study […]

Could the mysteries of antimatter and dark matter be linked?

The BASE group collaborators wondered whether the lack of antimatter might be because it interacts differently with dark matter, and set out to test this.  NOVEMBER 13, 2019 by RIKEN Could the profound mysteries of antimatter and dark matter be linked? Thinking that they might be, scientists from the international BASE collaboration, led by Stefan Ulmer […]

Scientists further refine how quickly the universe is expanding

“Cosmology is about understanding the evolution of our universe—how it evolved in the past, what it is doing now and what will happen in the future,” NOVEMBER 8, 2019 by Jim Melvin, Clemson University Wielding state-of-the-art technologies and techniques, a team of Clemson University astrophysicists has added a novel approach to quantifying one of the most […]

New findings detail a method for investigating the inner workings of stars in a rare phase

Helium core flash plays an integral role in our understanding of the life cycles of low-mass stars.  OCTOBER 29, 2019 by Harrison Tasoff, University of California – Santa Barbara In 5 billion years or so, when the sun has used up the hydrogen in its core, it will inflate and turn into a red giant star. […]

New research on giant radio galaxies defies conventional wisdom

Conventional wisdom tells us that large objects appear smaller as they get farther from us, but this fundamental law of classical physics is reversed when we observe the distant universe. OCTOBER 25, 2019 by Michelle Ulyatt, University of Kent Astrophysicists at the University of Kent simulated the development of the biggest objects in the universe to […]

Gravity crystals: A new method for exploring the physics of white dwarf stars

OCTOBER 21, 2019 by American Physical Society Grab a mixing bowl from your kitchen, throw in a handful of aluminum balls, apply some high voltage, and watch an elegant dance unfold where particles re-arrange themselves into a distinct “crystal” pattern. This curious behavior belongs to the phenomenon known as Wigner crystallization, where particles with the same […]

Stormy cluster weather could unleash black hole power and explain lack of cosmic cooling

This so-called “cooling flow” puzzle has plagued astrophysicists for more than 25 years. OCTOBER 17, 2019 by Dr Robert Massey, Royal Astronomical Society “Weather” in clusters of galaxies may explain a longstanding puzzle, according to a team of researchers at the University of Cambridge. The scientists used sophisticated simulations to show how powerful jets from supermassive […]

Researchers probe features of star clusters surrounding supermassive black holes

Based on a series of numerical models and simulations. by Institute for Advanced Study At the center of the galaxy, millions of stars whirl in orbits around a supermassive black hole. This circuit can take anywhere from a few hours for stars close to the event horizon of the black hole to thousands of years for […]

For newborn planets, solar systems are naturally baby-proof

OCTOBER 10, 2019 by Max Planck Society Numerical simulations by a group of astronomers, led by Mario Flock from the Max Planck Institute for Astronomy, have shown that young planetary systems are naturally “baby-proof”: Physical mechanisms combine to keep young planets in the inner regions from taking a fatal plunge into the star. Similar processes also […]

Researchers theorize origins of magnetars, the strongest magnets in the universe

OCTOBER 9, 2019 by Heidelberg University How do some neutron stars become the strongest magnets in the universe? A German-British team of astrophysicists has found a possible answer to the question of how magnetars form. They used large computer simulations to demonstrate how the merger of two stars creates strong magnetic fields. If such stars explode […]