Gravitational-wave astronomy is set to revolutionize our understanding of the cosmos. In only a few years it has significantly enhanced our understanding of black holes, but it is still a scientific field in its youth. That means there are still serious limitations to what can be observed. Currently, all gravitational […]

With its novel subterranean, triangular design, Europe’s Einstein Telescope would be a gravitational wave observatory unlike any other. ET CONCEPTUAL DESIGN TEAM It’s far from a done deal, but plans by European physicists to build a huge new gravitational wave observatory with a radical design received a boost this week. […]

An artist’s impression of two black holes about to collide and merge. Study offers evidence, based on gravitational waves, to show that the total area of a black hole’s event horizon can never decrease. There are certain rules that even the most extreme objects in the universe must obey. A […]

An artistic image inspired by a black hole-neutron star merger event. Credit: Carl Knox, OzGrav/Swinburne Mix pair is “elusive missing piece of the family picture of compact object mergers.” A long time ago, in two galaxies about 900 million light-years away, two black holes each gobbled up their neutron star […]

Artist’s illustration of a double neutron star merger. Credit: NSF/LIGO/Sonoma State/A. Simonnet Scientists from the ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav) have described a way to determine the birth population of double neutron stars — some of the densest objects in the Universe formed in collapsing massive […]

ANIMATION Scientists of the PRISMA+ Cluster of Excellence analyze data from the gravitational wave observatory NANOGrav. The NANOGrav Collaboration recently captured the first signs of very low-frequency gravitational waves. Prof. Pedro Schwaller and Wolfram Ratzinger analyzed the data and, in particular, considered the possibility of whether this may point towards new […]

Color map of the curvature on the large black hole horizon generated by the near merging small black hole. Credit: Nicole Rosato Rochester Institute of Technology scientists have developed new simulations of black holes with widely varying masses merging that could help power the next generation of gravitational wave detectors. […]

An artist’s impression of two black holes about to collide and merge. The merger of two black holes in a binary system emits energy that can be detected on Earth by gravitational-wave observatories. The LIGO Scientific Collaboration and the VIRGO Collaboration have announced tens of confident detections of such mergers to date. […]

Image of archaea. Credit: Steve Gschmeissner/Science Photo Library A group of international scientists, including an Australian astrophysicist, has used know-how from gravitational-wave astronomy (used to find black holes in space) to study ancient marine fossils as a predictor of climate change. The research, published in the journal Climate of the Past, […]

This illustration shows the NANOGrav project observing cosmic objects called pulsars in an effort detect gravitational waves – ripples in the fabric of space. The project is seeking a low-level gravitational wave background signal that is thought to be present throughout the universe. Credit: NANOGrav/T. Klein An international team of […]