Phoenix cluster is cooling faster than expected

With increasingly advanced data, Michael McDonald and colleagues study a galaxy cluster bursting with new stars. Fernanda Ferreira | School of Science | MITNovember 20, 2019 From the very beginning, it was clear that the Phoenix cluster was different from other galaxy clusters. When assistant professor of physics Michael McDonald looked at the first image […]

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 […]

How to spot a wormhole (if they exist)

A new study outlines a method for detecting a speculative phenomenon that has long captured the imagination of sci-fi fans: wormholes, which form a passage between two separate regions of spacetime. OCTOBER 23, 2019 by Charlotte Hsu, University at Buffalo Such pathways could connect one area of our universe to a different time and/or place within […]

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 […]

Black holes stunt growth of dwarf galaxies

OCTOBER 12, 2019 by University of California – Riverside Astronomers at the University of California, Riverside, have discovered that powerful winds driven by supermassive black holes in the centers of dwarf galaxies have a significant impact on the evolution of these galaxies by suppressing star formation. Dwarf galaxies are small galaxies that contain between 100 million to a […]

Violent flaring revealed at the heart of a black hole system

It has the mass of about 7 Suns, with this collapsed down to a region of space smaller than the City of London. OCTOBER 11, 2019 by University of Southampton An international team of astronomers, led by the University of Southampton, have used state-of-the-art cameras to create a high frame-rate movie of a growing black hole […]