ANU Institute for Space | InSpace’s Post

In this paper in Phys. Rev. E, we analyze phase space structures in relativistic chaotic scattering using the Hénon-Heiles Hamiltonian. We compare exit basins between relativistic and Newtonian systems, observing fractal structures and scaling laws.

Our last article !

Surprise! The biggest black hole in the galaxy turns out to be shockingly close to Earth - just a mere 2000 light-years away. By way of comparison, the nearest galaxy to ours is 2.5 million light-years away (that would be the Andromeda Galaxy). This newly found black hole-bad boy is much bigger (33x the mass of the sun) than other black holes in the Milky Way (outside the super big one at the center of the Milky Way which comes in at 4.2 million times the mass of the sun). These other black holes in the Milky Way have, on average, a mass ~ 10x that of the sun. But the galactic big boy black hole isn't the closest black hole to Earth. There is a 10X one a mere 1500 light-years away. Just when you think you know the neighborhood! Please see: https://lnkd.in/e7dit93W

Our paper with my French colleagues is just out. Sadier, Berhanu et al showed in "Breaking of a floating particle raft by water waves" that sea ice looking laboratory analogues resemble what we see at the planetary scale in the Arctic and Antarctic. The idea for doing this work started by staring at a cup of tea. Cool physics! Check the story and full paper here https://lnkd.in/eFTUyscx

At STM Weather, our staff of meteorologists make it a priority to stay up-to-date on the latest advancements in atmospheric science. Part of this continuing education process involves taking advantage of opportunities to attend and give presentations at scientific conferences. In this week's blog, Mike recounts what he learned at the Northeast Regional Operational Workshop (NROW) last week, and shares more on the presentations he was able to share with meteorologists from universities, the private sector, and public forecasters. https://lnkd.in/eU6aSx6s

Proud to share our new publication in Earth and Planetary Science Letters in collaboration with Luyuan Huang and Elias Rafn Heimisson! In this study, we investigated how poroelastic effects modulate fault rupture dynamics in stepovers. Our findings demonstrate that Skempton’s coefficient significantly governs the likelihood of rupture propagation across fault segments, offering critical insights into the mechanics of multi-segment ruptures and advancing our understanding of seismic hazard potential. Link: https://lnkd.in/dTpqAMJi Nanyang Technological University Singapore NTU College of Science NTU Asian School of the Environment Earth Observatory of Singapore

What if we saw microscopes and telescopes not merely as scientific tools, but instead as force multipliers for wonder? What if we viewed them as instruments of worship? The psalmist proclaims, “The heavens declare the glory of God; and their expanse declares the work of his hands. Day to day pours forth speech, and night to night reveals knowledge (1-2)." Our technological advances have revolutionized our ability to see this divine “speech.” Think of the astonishing images from the Webb telescope. From the oceanic vastness of space to the minute intricacies on display in the microscopic realm, the glory of our Lord’s good world has never been more vivid. Part of what we hope to do at the Encountering Beauty conference is to reframe the natural sciences for believers. Though science is often pitted against faith by some of our celebrated public intellectuals, in truth it can expand our appreciation for the marvels of God's creation. I hope to see you at the Museum of the Bible in D.C. on July 13th!

A paper, published in the open access journal Galaxies MDPI, outlines the key goals for the next-generation Event Horizon Telescope (ngEHT). The research, mentioned in Scientific American, discusses the groundbreaking achievements of the Event Horizon Telescope (EHT), which has captured the first images of supermassive black holes (SMBHs) residing within the M87 galaxy and at the centre of the Milky Way. The research outlines how a series of scientific objectives can drive advancements in very-long-baseline interferometry (VLBI) over the coming decades. These advances promise new discoveries illuminating the extraordinary role of black holes across various astrophysical scales. Read more about this research: https://brnw.ch/21wJ2vC or view the news story: https://brnw.ch/21wJ2vB #BlackHoles #EventHorizonTelescope

While Pluto is no longer considered a planet, is there a Planet Nine out there that could replace it in our textbooks and hearts? In addition to its potential contributions to dark energy and dark matter research, the upcoming NSF-DOE Vera C. Rubin Observatory may be able to answer the question: "Does a Planet Nine truly exist or not?", as covered in Scientific American: https://lnkd.in/en5DuD93

This was a preliminary investigation on the emplacement mechanisms of the different Paleoproterozoic mafic dyke swarms of the eastern Dharwar Craton, based on the statistical interpretation of the dyke aspect ratios, fracture geometry, and magmatic overpressures. This technique has been used in recent dyke swarms and active volcanoes to measure their effusivity. But this was the first time this technique was applied to Paleoproterozoic dyke swarms on a large scale with a substantial level of confidence. It was published in 2023 in the Physics of Earth and Planetary Interiors.