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The cover of this issue illustrates the idea of multiple instruments, multi-messenger observation campaigns discussed in a special Focus. See Editorial
Image: Denys Bilytskyi, Alamy Stock Photo. Cover design: Charlotte Gurr.
The 5 years since the first detection of gravitational waves have witnessed the rise of multi-messenger astronomy, a field that expands our understanding of astrophysical processes and reshapes the way science is done.
Miguel Mostafa describes the Astrophysical Multimessenger Observatory Network (AMON), an online network that enables real-time coincidence searches using data from the leading multimessenger observatories and astronomical facilities.
Sarah Antier describes the Global Rapid Advanced Network Devoted to the Multi-messenger Addicts (GRANDMA), which aims to identify and characterize the electromagnetic counterparts of gravitational wave sources
Mansi M. Kasliwal discusses the Global Relay of Observatories Watching Transients Happen (GROWTH) collaboration and shares her enthusiasm about the future of multi-messenger astrophysics.
Andrew Levan and Peter Jonker discuss, on behalf of the Electromagnetic counterparts of gravitational wave sources at the Very Large Telescope (ENGRAVE), how the collaboration was formed and what its goals are in the era of multi-messenger astronomy.
Alec Habig and Kate Scholberg describe the Supernova Early Warning System (SNEWS), an international network of neutrino detectors aimed to alert the astronomical community if supernova neutrinos are detected.
A paper in Science Advances shows that the classic picture of sperm cells moving via symmetrical side-to-side wiggling is an artefact of 2D imaging — the actual motion is far more complex.
The Kondo insulator samarium hexaboride is the first experimentally demonstrated example of a strongly correlated topological insulator. This article reviews the topological theory and experimental evidence, including a mystery as to the origin of quantum oscillations and their relation to possible unconventional bulk in-gap states.
Acoustic and optical waves can be used to exert non-contact forces on microscopic and mesoscopic objects. In this Technical Review, we compare and contrast the use of these modalities, or combinations thereof, in terms of sample manipulation and suitability for biomedical studies.
Magnetic skyrmions, two-dimensional nanometre-scale localized states, are promising candidates for new technological applications. This Perspective surveys the progress in this field and offers a brief, accessible guide to the basic physical principles of magnetic skyrmions.
Neuromorphic computing takes inspiration from the brain to create energy-efficient hardware for information processing, capable of highly sophisticated tasks. Including more physics in the algorithms and nanoscale materials used for computing could have a major impact in this field.
