Friday 5th September 2025 Flip it and reverse it: probing the origins of oblique planetary systems

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Dr Claire Davies, University of Exeter

Friday 5th September 2025 7.30 pm in the BRLSI, Bath, and on Zoom

The image shows a star surrounded by a protoplanetary disk. Accredited to NASA.

The field of exoplanet detection and characterisation has bloomed over the past couple of decades and a wide variety of systems have been discovered, often widely different from our own. These have presented challenges to our understanding of how stars and their planetary systems formed, which were based on our neatly configured Solar System, where the planetary orbits align with the Sun’s equator. In this talk, I’ll present an overview of theoretical predictions of how planetary systems can become misaligned, as well as observational evidence that suggests a planet’s skew-whiff axis may originate from warps and tears in its natal proto-planetary disc.

Dr Claire Davies is a Senior Lecturer in Physics and Astronomy and Director of Equality, Diversity and Inclusion for the Department of Physics & Astronomy at the University of Exeter. She obtained a PhD in Astronomy from the University of St Andrews in 2015 and has a research background in high angular resolution observational studies of star formation. Claire is an outspoken advocate for supporting under-represented groups into science through outreach and equality, diversity and inclusion work. She founded and leads the PRISM Exeter network and has worked with the likes of the BBC and Disney Pixar on The Sky At Night Question Time Special 2023 and science exhibitions to mark the release of the 2022 film “Lightyear”, respectively.

Tickets (£6 or £3 for BRLSI or Herschel Society members and students, proceeds to the BRLSI) available here.

Herschel Society Members receive a discount code in the announcement that is mailed to them.

Friday 2nd May 2025 The Chemistry of the Universe

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The Davy lecture (The Royal Society of Chemistry)

Professor Mike G. Edmunds

Friday 2nd May 2025 7.30 pm in the BRLSI, Bath, and on Zoom

The infrared image of the Eagle Nebula was obtained using JWST. Stars are born inside the dense, blue-gray “pillars of creation” – vast clouds of dense interstellar gas and dust. Accredited to NASA.


There is the real and fascinating probability that in the future we will be confronted with extraterrestrial worlds whose physical conditions and compositions result in chemistries radically different from our own. This is the Humphry Davy Lecture, first given at the Royal Society of Chemistry in London last autumn.  It outlines our current knowledge of the origin and distribution of the elements in the universe, as we try to push as far as we can into astronomical environments where complex chemistry is taking place. Currently we believe we have a remarkably good understanding of the processes and astronomical sites that have led to the formation of the elements in the periodic table. Except for hydrogen, some helium and a little lithium, all of them have been synthesised since the beginning of the universe. Recent spectroscopic observations to high redshifts are enabling us to follow their build up in galaxies from back in the earliest times to the present. The discovery of many planetary systems beyond the Solar System, and the investigation of dense interstellar environments, imply a huge unexplored range of chemical possibilities and may lead to profound implications for life in the Universe. It is suggested that extensive theoretical investigation of these enticing possibilities may be both possible and necessary.


Mike Edmunds is Emeritus Professor of Astrophysics at Cardiff University, and the immediate past-President of the Royal Astronomical Society.  He was educated at Cambridge, but has lived and worked in Wales for fifty years. His research career involved the determination and interpretation of the abundances of the chemical elements in the Universe – particularly through spectroscopy of galaxies – and investigation of the origin of interstellar dust. Later work has been in the history of astronomy, including the ancient Greek Antikythera Mechanism. He was a member of two UK Research Councils. He is a Vice-President of the Herschel Society and an Honorary Vice-President of the Society for the History of Astronomy. He can occasionally be seen in his one-man play about Newton – ‘Sir Isaac Remembers…’. He was the subject of BBC Radio 4’s ‘The Life Scientific’ in April 2024, also appearing on “In Our Time” in November.

Tickets (£6 or £3 for BRLSI or Herschel Society members and students, proceeds to the BRLSI) available here.

Herschel Society Members receive a discount code in the announcement that is mailed to them.