RAS Library and Archives @astrolibrarian.bsky.social · 18/09/2026An interesting space weather detective story drawing on historical records at @royalastrosoc.bsky.social @exeterunispeccoll.bsky.social and BT Group! 085
RAS Library and Archives @astrolibrarian.bsky.social · 12/08/2026These original negatives of the 1875 eclipse, loaned to us by the Royal Society, have now been returned. We are grateful to the @royalsociety.org for not fining us! 084
Reposted by RAS Library and ArchivesRoyal Astronomical Society @royalastrosoc.bsky.social · 27/07/2026The Royal Astronomical Society is shocked and dismayed to hear that the UK's iconic Jodrell Bank Observatory is at risk of closure amid a slew of catastrophic budget cuts. Read our full statement here: ras.ac.uk/news-and-pre... 8387182
RAS Library and Archives @astrolibrarian.bsky.social · 13/03/2026Also #OTD in 1930, the discovery of Pluto by Clyde Tombaugh was announced to the world, including a telegram about the trans-Neptunian planet sent to @royalastrosoc.bsky.social as mentioned in this 2015 BBC Newsnight clip about the New Horizons Pluto Flyby 10 years ago t.co/u6VKYl5rn7. 021
RAS Library and Archives @astrolibrarian.bsky.social · 13/03/2026William Herschel observed 'a curious either nebulous star or perhaps a comet' #OnThisDay 13 March 1781. If you turn the pages of his observation journal held at @royalastrosoc.bsky.social you will see that this new celestial body was confirmed to be a new planet, now known as Uranus. 1114
Reposted by RAS Library and ArchivesDr Katy Barrett FSA @spoonsontrays.bsky.social · 05/03/2026Myriad ways of showing us the wonders of the cosmos. Finally managed a blog post about #Cosmos at #RoyalWestofEnglandAcademyspoonsontrays.comCosmos: the art (and science) of observing space — Spoons on Trays | Katy BarrettBoth artists and scientists are fascinated by the world around us. Both observe and interrogate the world and show it back to us in new ways. Both use images not only to illustrate but also to produce... 031
RAS Library and Archives @astrolibrarian.bsky.social · 05/03/2026On #WorldBookDay here is the first printed edition of Euclid's 'Elements' (1482). There is also a connection with William Morris - the printer, Erhard Ratdolt, was an innovative printer whose designs influenced Morris's approach to typographical arts. 081
Reposted by RAS Library and ArchivesThony Christie @rmathematicus.bsky.social · 19/02/2026Nicolaus Copernicus was born 19 February 1473. @karlgalle.bsky.social's biographical sketch of his life & work #histsci thonyc.wordpress.com/2018/05/24/p...thonyc.wordpress.comPublish and PerishAs I announced yesterday I am playing away this week with a tasty post on astrology and astronomy on the excellent Forbidden Histories blog site. However the substitute bank here at The Renaissance… 0159
RAS Library and Archives @astrolibrarian.bsky.social · 13/02/2026RAS archivist Kate Bond spoke to CNN about her discovery of Richard Carrington's portrait: www.cnn.com/2026/02/12/s...cnn.comThe largest solar storm was named after a 19th century astronomer. His only portrait has been found | CNNRichard Carrington’s name has long been connected with the most intense solar storm ever recorded, but his face was unknown until a lost portrait surfaced. 051
Reposted by RAS Library and ArchivesChris Lintott @chrislintott.bsky.social · 02/02/2026Fun astronomy/archives story - Kate Bond @royalastrosoc.bsky.social has tracked down the only photograph of 19th century astronomer Richard Carrington, who spotted the first recorded solar flare. academic.oup.com/astrogeo/art...academic.oup.comCapturing CarringtonA speculative search in the right place at the right time turned up what is thought to be the only image of the eponymous solar observer. 23910
RAS Library and Archives @astrolibrarian.bsky.social · 29/01/2026Dr Allan Chapman was a great friend to the RAS Library and very generous with his knowledge - we will miss him. 083
RAS Library and Archives @astrolibrarian.bsky.social · 09/01/2026The web image used for the meeting on machine learning in solid earth science shows seismicity at Campi Flegrei volcanic field in Naples, Italy. Meeting delegates also had the chance to see Athanasius Kircher's engraving of this area from his 1638 visit in 'Mundus subterraneus' (1678). 050
Reposted by RAS Library and ArchivesRoyal Astronomical Society @royalastrosoc.bsky.social · 09/01/2026The Agnes Mary Clerke Medal, awarded every three years to an individual who has achieved outstanding personal research into the history of astronomy or geophysics, goes to Prof Clemency Montelle, of the University of Canterbury, NZ. She said she was "delighted and honoured" to receive the prize. ⤵️ 142
RAS Library and Archives @astrolibrarian.bsky.social · 19/11/2025@lfrench.bsky.social Hi Linda, I hope all's well, good to see you here. A reader has a question about Goodricke, would you be able to help? 000
RAS Library and Archives @astrolibrarian.bsky.social · 29/09/2025Thanks so much, I really enjoyed talking to you all! Lovely to return to MKAS :-) 010
Reposted by RAS Library and ArchivesRoyal Astronomical Society @royalastrosoc.bsky.social · 29/08/2025🧑💻 Job vacancy 🧑💻 We're looking for a part-time Assistant Librarian to join our team and would love to hear from anyone with the necessary skills and experience! Want to apply or find out more? Visit: ras.ac.uk/news-and-pre... 196
RAS Library and Archives @astrolibrarian.bsky.social · 08/08/2025Good to finally see the plaque dedicated to pioneering astronomers Willam and Margaret Huggins in the crypt of St Paul's Cathedral this evening. Installed in 1917. There aren't many other women commemorated in the 500 or so monuments here, but this post reveals more: lookup.london/women-of-st-.... 052
Reposted by RAS Library and ArchivesChris Lintott @chrislintott.bsky.social · 09/06/2025Sky at Night - BBC 4 tonight at 21.50 - celebrates the 350th birthday of Royal Observatory Greenwich, and we get to talk about time and black holes. It's genuinely a great episode - please watch. www.bbc.co.uk/programmes/m...bbc.co.ukBBC Four - The Sky at Night, Greenwich: A Journey Through Space and TimeThe team celebrate the 350th anniversary of the Royal Observatory. 47916
Reposted by RAS Library and ArchivesRAS Journals @rasjournals.bsky.social · 07/06/2025Left to right: Sian Prosser, Pam Rowden and Adam Boal, ready for visitors at the RAS @royalastrosoc.bsky.social stand at the Lambeth Country Show. @astrolibrarian.bsky.social @oxfordacademic.bsky.social Come and meet us to learn more about the RAS and engage in some fun activities. 031
RAS Library and Archives @astrolibrarian.bsky.social · 20/03/2025Amazing #histastro acquisition of a rare catalogue annotated by Flamsteed himself! Congratulations to @jasonwdean.com and the Linda Hall Library. 130
Reposted by RAS Library and ArchivesKaren Masters @karenlmasters.bsky.social · 14/03/2025Something a bit different for me today - attending this event on “Libraries of Science” talking later about my “Astronomers Library” book. 🔭👩🔬🎢 57111
Reposted by RAS Library and ArchivesKaren Masters @karenlmasters.bsky.social · 11/03/2025Nice visit to the @royalastrosoc.bsky.social today - got to see my book in the library (and some other books) meet my editor, Roland Hall, in person and see the famous quilt. 🔭👩🔬 1343
Reposted by RAS Library and ArchivesThe Linnean Society of London @linneansociety.bsky.social · 08/03/2025This #InternationalWomensDay, watch our fascinating talk from Gem Toes-Crichton on her visual research exploring pioneering women in botany. She features Elizabeth Blackwell, Anna Atkins, and the 1994 winner of our Jill Smythies prize, Rosemary Wise. Watch: www.youtube.com/watc... #IWD2025youtube.comInterstices | The Hidden Histories of Women in Botany“Individual contributions are all too often forgotten, overshadowed, or never acknowledged; lost in the gaps among objects.” - Professor Stephen A. Harris, Druce Curator of Oxford University Herbaria. (Adapted from the foreword to Gem Toes-Crichton’s book.)” In this talk, Gem Toes-Crichton shares h 1259
Reposted by RAS Library and ArchivesThe Society of Antiquaries of London @antiquaries.bsky.social · 08/03/2025On #IWD2025 we're celebrating the lives and legacies of four remarkable female scholars: Gertrude Bell, Beatrice de Cardi, Joan Evans, and Margaret Stokes. #AccelerateAction 26416
Reposted by RAS Library and ArchivesRebekah Higgitt @rhiggitt.bsky.social · 08/03/2025See the whole thread for stories of women and (history of) astronomy for #IWD2025 - but nota bene historians of science: nominations sought for the 2026 RAS prize for historical research #histsci 0115
RAS Library and Archives @astrolibrarian.bsky.social · 08/03/2025Thanks to @rhiggitt.bsky.social for contributing Agnes M. Clerke posts forn #IWD2025 - you can read a fuller tribute here: www.pascal-theatre.com/biographies/...pascal-theatre.comAgnes Mary Clerke 1842 – 1907 - Pascal Theatre CompanyAstronomer, author, historian of astronomy. 10 February 1842 – 20 January 1907 Agnes Mary Clerke 1905 Hector Macpherson, Public domain, […] 065
Reposted by RAS Library and ArchivesRoyal Astronomical Society @royalastrosoc.bsky.social · 08/03/2025As women gained increasing access to education in the late 1900s, they played an influential role in institutions like Liverpool Astronomical Society, which was founded in 1881. Seven of 49 members depicted in an 1888 multiple portrait photograph were women. 122
Reposted by RAS Library and ArchivesRoyal Astronomical Society @royalastrosoc.bsky.social · 08/03/2025Happy International Women’s Day! 👩🏾🔬👩🏼🚀👩🏻🔧 To mark #IWD2025, the @royalastrosoc.bsky.social is celebrating some of the women who helped shape the history of astronomy. Follow this thread to find out more… ⤵️ 1177
Reposted by RAS Library and ArchivesCSIRO Publishing @csiropublishing.bsky.social · 07/03/2025Ahead of #WomensDay tomorrow, we spoke with historian Toner Stevenson who recently co-authored an #OpenAccess article in Historical Records of Australian Science about gender diversity in Australian astronomy. blog.publish.csiro.au/gender-diver... #HistoricalRecordsAS #IWD #WomenInSTEMblog.publish.csiro.au"The Job Is Not Done": Gender diversity in Australian astronomy - CSIRO PUBLISHINGToner Stevenson, author of an open access research article in Historical Records of Australian Science, sheds light on the challenges faced by women in astronomy between 1966-2023. 1207
Reposted by RAS Library and ArchivesMuseums Association @museumsassociation.org · 11/02/2025News | Science Museum to open three new galleries in next five years – transformation includes closure of Exploring Space gallery after four decadesmuseumsassociation.orgScience Museum to open three new galleries in next five years - Museums AssociationTransformation includes closure of Exploring Space gallery after four decades 0174
Reposted by RAS Library and ArchivesJason W. Dean @jasonwdean.com · 12/02/2025The video of my talk @illinoisrbml.bsky.social about Flamsteed's 1712 "Historia Coelestis" is now up! Thanks to @lynnemthomas.com for the invite and @hillemmalouise.bsky.social for the collab on our man, JF. Enjoy, and share! #HistSci 📜 📚 #histSTM #astronomy #histastro 🗃️🔭 youtu.be/E0ofUoEv4cc?...youtu.beSacrifice to Truth: John Flamsteed, Isaac Newton & the destruction of the 1712 "Historia Coelestis"YouTube video by IllinoisRBML 1138
Reposted by RAS Library and ArchivesRebekah Higgitt @rhiggitt.bsky.social · 11/02/2025For #WomeninScienceDay, here's a listicle of women linked to @ntlmuseumsscot.bsky.social collections and stories #histstm www.nms.ac.uk/discover-cat...nms.ac.uk8 women in Scotland who shaped the history of science | National Museums ScotlandMany of the scientific endeavours featured in our collections are the work of women with a connection to Scotland. Below, we've highlighted key contributio 1368
Reposted by RAS Library and ArchivesScience Magazine @science.org · 11/02/2025When asked to draw a scientist, school-age kids in the United States are increasingly sketching women, according to a study from 2018. Read more on #WomenInScienceDay: scim.ag/4hOUuvx 10717178
Reposted by RAS Library and ArchivesRoyal Astronomical Society @royalastrosoc.bsky.social · 07/02/2025We're at European AstroFest 2025 in Kensington, west London, today! 👋 🚀 @royalastrosoc.bsky.social President Mike Lockwood opened the two-day conference, which is one of the biggest astronomy shows of its kind in the UK. ⤵️ 151
Reposted by RAS Library and ArchivesThony Christie @rmathematicus.bsky.social · 28/01/2025The Danzig astronomer Johannes Hevelius was born 28 January 1611 #histsci thonyc.wordpress.com/2012/01/28/t...thonyc.wordpress.comThe last great naked-eye astronomer.Anybody cognizant with the history of astronomy in the Early Modern Period almost certainly thinks that the tittle of this post alludes to Tycho Brahe but in fact it refers to a man born ten years … 0176
Reposted by RAS Library and ArchivesRoyal Astronomical Society @royalastrosoc.bsky.social · 10/01/2025📝 Job vacancy 📝 The Royal Astronomical Society wishes to appoint an Editor for its flagship members' magazine Astronomy & Geophysics. Want to apply or find out more? Visit: ras.ac.uk/news-and-press/news/job-v… 059
RAS Library and Archives @astrolibrarian.bsky.social · 09/01/2025To learn more, book a free ticket for the hybrid A&G Highlights Meeting and drop into the RAS Library to see our temporary display if you are at Burlington House! ras.ac.uk/events-and-m...ras.ac.ukJanuary A&G Highlight's MeetingRAS Meetings | Friday, 10 of January 2025 - 16:00 | January A&G Highlight's Meeting 011
RAS Library and Archives @astrolibrarian.bsky.social · 09/01/2025Chandrasekhar's paper, ‘The Highly Collapsed Configurations of a Stellar Mass’ received a response from Sir Arthur Eddington entitled 'On relativistic degeneracy' in which he was extremely critical of Chandrasekhar’s theory. academic.oup.com/mnras/articl...academic.oup.comOn “Relativistic Degeneracy.”A. S. Eddington; On “Relativistic Degeneracy.”, Monthly Notices of the Royal Astronomical Society, Volume 95, Issue 3, 1 January 1935, Pages 194, https://d 111
RAS Library and Archives @astrolibrarian.bsky.social · 09/01/2025Chandrasekhar’s paper on was read at a meeting of @royalastrosoc.bsky.social on 11 January 1935. Chandrasekhar showed that as the mass of a white dwarf reaches the maximum mass, the star’s radius becomes zero and the star shrinks to nothing – the Chandrasekhar Limit. academic.oup.com/mnras/articl... 111
RAS Library and Archives @astrolibrarian.bsky.social · 09/01/2025Nilanjan P. Choudhury will be one of the speakers at the January A&G Highlights Meeting. His play about S. Chandrasekhar and Arthur Eddington has inspired archivist Kate Bond to curate a display relating to the 90th anniversary of the clash between the two astronomers ras.ac.uk/events-and-m... 1103
Reposted by RAS Library and ArchivesDr Ella Hawkins @ellamchawk.bsky.social · 05/12/2024Centuries ago, many astronomical books included moving parts to help readers interpret the world around them. This biscuit recreates a diagram from Sacrobosco’s ‘De Sphaera’ (c.1550). It could be used to calculate the changing length of daylight hours through the year. 🍪 351207313
RAS Library and Archives @astrolibrarian.bsky.social · 29/11/2024Thanks to everyone who took part in our tour this evening! Deborah Kent will be talking about the events of 1874 at the next A&G highlights meeting on Friday 13/12/24 - to book tour free ticket (in person online) go to ras.ac.uk/events-and-m... - more details will be added soon.ras.ac.ukDecember A&G Highlight's MeetingRAS Meetings | Friday, 13 of December 2024 - 16:00 | December A&G Highlight's Meeting 031
RAS Library and Archives @astrolibrarian.bsky.social · 29/11/2024Thanks to Kate for hosting our behind the scenes tour of Burlington House! Here she is showing a scrapbook about the 1874 Transit of Venus expedition to Kerguelen island to our visitors. 040
RAS Library and Archives @astrolibrarian.bsky.social · 29/11/2024Our Archivist Kate Bond kicks off our anniversary tour of @royalastrosoc.bsky.social 141
Reposted by RAS Library and ArchivesRoyal Astronomical Society @royalastrosoc.bsky.social · 20/11/2024Have you booked your ticket for this year's John Brown Memorial Lecture? The talk, held in honour of the late Astronomer Royal for Scotland and past winner of an Royal Astronomical Society Gold Medal, will take place on Wednesday 4 December. (1/2) 154
RAS Library and Archives @astrolibrarian.bsky.social · 19/11/2024To accompany Professor Ian Crawford's lecture on the Fermi Paradox, we've put together a display of 17th- and 18th-century speculations about life on the Moon, including lunar maps by Riccioli, Grimaldi and Hevelius. 1112