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Prof. Abel Méndez

@profabelmendez.bsky.social
1.7K followers 557 following 436 posts

Planetary Astrobiologist and Director of the @PlanetaryHabLab. astrodon.social/@profabelmendez #exoplanets #astrobiology #habitability

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Reposted by Prof. Abel Méndez
International Space Science Institute (ISSI) @issibern.ch · 13/10/2026
PRESS RELEASE: 🪐 Planetary systems come in two families, and the host star decides which one is born. An ISSI International Team led by Diederik Kruijssen published their research out now in Nature Astronomy 👇 www.issibern.ch/planetary-sy... #Exoplanets #Astronomy #PlanetaryScience
issibern.ch
PRESS RELEASE
Discover how planetary systems form in spiral galaxies filled with young stars and vibrant star-forming regions.
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Reposted by Prof. Abel Méndez
Matthew Kenworthy @mattkenworthy.bsky.social · 12/10/2026
I had an absolutely fantastic time talking about colliding exoplanets as part of Pints of Knowledge at Big Penny Social in Walthamstow, and spent over half an hour answering many excellent questions from the audience! #exoplanets #astrodon #outreach
An image of the Extremely Large Telescope shrouded in mist with a rising sun is projected on a large screen, with me in a blue and white checked shirt standing in front of it with me waving my arms around excitedly and talking to the audience.View from the stage with a fingerprint smudged laptop screen (not my laptop!) with “Pints of Knowledge” logo on it, and in the background several beer tables with people around them, looking at the compare talking off picture left. A large black stage curtain is at the back of the space.
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BOWIE+ Seminar Series @bowieseminar.bsky.social · 11/10/2026
Our next ECR highlight session will be on October 22nd. Join us for talks on interior modelling of exoplanets and the variability of brown dwarfs and exoplanets. To receive the Zoom link, sign up to the mailing list on our website. #exoplanets bowiecollaboration.github.io/seminars.html
A poster advertising two online talks as a part of the BOWIE+ Seminar Series.  A grey banner along the bottom identifies the seminar series and the date and time (22 October, 2026 at 16h British Summer Time). In the bottom right, there is the logo of the BOWIE+ collaboration, a gold hexagon, evoking a JWST mirror, with a transit curve and red lightning bolt on top.   Above, there are two rows indicating the speakers.  In the top row, there is a picture of Harrison Nicholls with the title of his talk ("Enabling the full potential of PLATO and JWST by modelling exoplanets’ interior-atmosphere states across deep time").  In the second row, there is a picture of Beatriz Campos Estrada with the title of her talk ("Exploring the limits of atmospheric retrievals in the JWST era: lessons from variable substellar atmospheres") to the right.
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Reposted by Prof. Abel Méndez
ESA Space Science @science.esa.int · 09/10/2026
Want to help discover an exoplanet? 🪐 Planet Hunters Cheops is a new #CitizenScience project that invites you to search for planet transit signals hidden in light curves from our Cheops mission. Join the hunt on @zooniverse.bsky.social 👉 www.zooniverse.org/projects/bme... 🔭 🧪 #Exoplanets
This artist impression shows a planetary system with four planets circling around a star. In the foreground, a large reddish-brown rocky planet with craters is visible. Behind it, there are three smaller planets: one with blue and white colours, another with blue and brown bands, and the third with a rocky surface. In the top right corner of the image, a small but bright red star illuminates the scene, with space dust and distant stars visible in the background.
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Tara Murphy @taramurphy.bsky.social · 08/10/2026
A fast radio burst at redshift 2, three billion years after the Big Bang! Exiting new result from @manishacaleb.bsky.social and team using MeerKAT and JWST. theconversation.com/astronomers-... #RadioAstronomy ☄️ 🔭 ⚛️
theconversation.com
Astronomers pinpoint the origin of a 10 billion-year-old millisecond signal from space
A flash of radio waves from a young galaxy 3 billion years after the Big Bang is lighting up 80% of the universe’s history.
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National Radio Astronomy Observatory - NSF NRAO @thenrao.bsky.social · 09/10/2026
Radio #ImageoftheWeek Meet NGC 253, aka the Sculptor Galaxy! 🌌 At ~11.5 million light-years from Earth, it is one of the closest starburst galaxies to the Milky Way. Starburst galaxies transmute gas into new stars up to 1,000 times faster than typical spiral galaxies! More ⤵️ #RadioAstronomy
Science image of starburst galaxy NGC 253, as observed by ALMA. A red region represents the lower density carbon monoxide (CO) gas surrounding higher density star-forming regions (stellar nurseries) in yellow.A grid of 9 images of  starburst galaxy NGC 253 with different colors representing different molecular species. In order: molecular gas (blue), shocked regions (red), relatively high-density regions (orange), young starbursts (yellow), developed starbursts (magenta), and molecular gas affected by cosmic-ray ionization (cyan).Schematic image of the center of starburst galaxy NGC 253. At the top, a graph of radio wave intensity. Various locations are labeled with the corresponding tracer molecular species.
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A. Suárez Mascareño @asuarezmascareno.com · 09/10/2026
So... a (non-astronomer) redditor found a candidate planetary system, hosting a 1.4 Re planet, using LLM-assistance and it seems legit enough to get a TESS DDT approved. #exoplanets #astronomy
reddit.com
From the ClaudeAI community on Reddit
Explore this post and more from the ClaudeAI community
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Kevin Hardegree-Ullman @kevinkhu.bsky.social · 10/10/2026
I provided some comments in this news article about an #exoplanet candidate discovery from someone using AI who posted the finding to social media. tl;dr: This is a planet candidate. Confirmation requires follow-up, which, for now, still needs humans. 🔭 gizmodo.com/did-claude-h...
gizmodo.com
Did Claude Help an Amateur Astronomer Discover a New Planet?
Billions of exoplanets are believed to be out there awaiting discovery. AI—with its ability to sift through mountains of data—could speed that process along.
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Prof. Abel Méndez @profabelmendez.bsky.social · 09/10/2026
20 years of FRBs: Monday, 21 June 2027 – Friday, 25 June 2027, Villa Tuscolana, Frascati, Rome, Italy. 60 years of Pulsars: Monday, 28 June 2027 – Friday, 2 July 2027, LVR-Landesmuseum Bonn, Germany. 50 years of the Wow! Signal: 👀
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Reposted by Prof. Abel Méndez
Ben Sutlieff @bensutlieff.bsky.social · 09/10/2026
I was invited to write a short article for the @leverhulme.ac.uk newsletter out this month, and excitingly it was chosen to feature on the cover! Read about our work on exoplanet atmospheres and why clouds are kind of great, actually #WorldSpaceWeek 🪐🔭
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Reposted by Prof. Abel Méndez
Royal Astronomical Society @royalastrosoc.bsky.social · 09/10/2026
Want to hear about some of the weirdest planets ever discovered? 🪐👽️ We're kicking off our 2026/27 Public Talk programme by taking our audience on a tour through some of the most peculiar exoplanets discovered to date – some stranger than those imagined by science fiction. ⤵️
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ESA en español @es.esa.int · 09/10/2026
¿Quieres ayudar a descubrir un exoplaneta? Planet Hunters Cheops es un nuevo proyecto de #CienciaCiudadana que te invita a buscar señales del tránsito de planetas ocultas en las curvas de luz de nuestra misión Cheops. ¡Únete a la búsqueda! 🪐🔍
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Prof. Abel Méndez @profabelmendez.bsky.social · 09/10/2026
Last month, I spoke with Duncan Lorimer, discoverer of fast radio bursts (FRBs), about FRBs and the Wow! Signal. In 2027, we’ll celebrate three major milestones in #RadioAstronomy: 60 years of pulsars, 50 years of the Wow! Signal, and 20 years of FRBs! 📡
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Prof. Abel Méndez @profabelmendez.bsky.social · 08/10/2026
Margaret Hamilton, whose software helped land Apollo astronauts on the moon, has died | CNN edition.cnn.com/2026/10/07/s...
edition.cnn.com
Margaret Hamilton, whose software helped land Apollo astronauts on the moon, has died | CNN
The groundbreaking researcher who helped create the field of software engineering and whose code helped land NASA win the 20th century space race, has died at 90.
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Sascha Trippe 🛰️ 사샤 트리페 @saschatrippe.bsky.social · 06/10/2026
NEW PAPER: Wanchaloem Khwammai, my ex-student and now postdoc at NARIT, found a 300-deg polarization angle swing in multi-observatory radio data of the blazar OJ 287, likely caused by the propagation of a transient disturbance in the jet. arxiv.org/abs/2610.03044 🧪🔭☄️ #RadioAstro #Extragalactic
Observed radio flux density, EVPA, and polarization fraction of OJ 287 as a function of time and frequency, covering the period from 2012 April to 2023 January.
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Nicole BOO-liucci 🎃 @noisyastronomer.com · 05/10/2026
STUNNING radio picture. WOW. #RadioAstronomy
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Atanas K. Stefanov @astronasko.com · 08/09/2026
\end{phd}
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Prof. Abel Méndez @profabelmendez.bsky.social · 06/10/2026
The Wow! Signal — Nature Finds a Way 😉 #AreciboWow
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Prof. Abel Méndez @profabelmendez.bsky.social · 03/10/2026
Webb provides crash course on planet-shattering collisions esawebb.org/news/weic261...
esawebb.org
Webb provides crash course on planet-shattering collisions
In the early history of our Solar System, a Mars-sized object called Theia smashed into the infant Earth, vapourising massive amounts of rock and blasting it into space. Some of that material…
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Reposted by Prof. Abel Méndez
CosmicRami 🏳️‍🌈🏳️‍⚧️ @rami.spaceaustralia.com · 02/10/2026
Today is the 81st anniversary of the birth of #RadioAstronomy in Australia! 📡 It grew out of radar tech built here in Sydney during WWII. As the war ended, military activity shifted to research, investigating the strange 'noise' and 'interference' coming from the Sun. 📸 J. Messer/NSW G.R.
Coer of a magazine from the late 1940s showing an illustration of a radar station on top of a hill. The title reads: SECRET - Directorate of Radar Services R.A.A.F. Radar Station Portable Type - LW Station
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Tessa Vernstrom @tvern23.bsky.social · 03/10/2026
Beautiful #ASKAP image of the skull and crossbones nebula. 🔭 from the EMU survey #astro #radioastronomy
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Prof. Abel Méndez @profabelmendez.bsky.social · 02/10/2026
In the search for life in the universe there have been plenty of close calls. www.cfpublic.org/2026-09-30/f...
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National Radio Astronomy Observatory - NSF NRAO @thenrao.bsky.social · 30/09/2026
What’s new with the Next Generation Very Large Array (ngVLA)? 📡 We’ve recently reached some milestones for “first fringes” – meaning successful correlation, combining signals from 2+ separate antennas. 📸 Credit: Scott Broadwell More ⤵️ #ngVLA #Astronomy #RadioAstronomy
Astrophotography image of the ngVLA prototype antenna beneath a darkening blue sky, with stars just becoming visible.
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CosmicRami 🏳️‍🌈🏳️‍⚧️ @rami.spaceaustralia.com · 01/10/2026
👀👀👀 New image from SKA-Low! This is of a Long-Period Transient (a phenomenon we don't fully understand as yet) and was imaged using 14 stations (3,584 antennas) located in Western Australia Top plot is not dispersed (affected by 'stuff' between stars). That profile 🤩 📸 SKAO 🔭📡 #RadioAstronomy
two tile images stacked vertically. Top image shows pink curves sweeping from top left to bottom right. Bottom image shows vertical curves. This is the pulse of the long period transient which is non-dispersed (top) and dispersed (bottom).
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Prof. Abel Méndez @profabelmendez.bsky.social · 28/09/2026
Help us solve the Wow! Signal. OpenAI’s Codex can now solve a time-consuming computational problem that no other AI platform we tested could handle before. We now need more computing power. You can support our research with gift credits or donations. #AreciboWow phl.upr.edu/support
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Prof. Abel Méndez @profabelmendez.bsky.social · 30/09/2026
I looked at the data, and it looks like terrestrial interference: Astronomers Searched 33 Planetary Systems For Alien Signals. One Caught Their Attention. www.sciencealert.com/astronomers-... iopscience.iop.org/article/10.3...
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Sami Lamby 🩷💜💙 @samilamby.bsky.social · 28/09/2026
I had the pleasure of writing an article for @ca.theconversation.com about some of the cool science Roman will do -- including studying the rotation of tiny stars (aka ultracool dwarfs)! Check it out here: theconversation.com/how-nasas-na... 🔭 #exoplanets #stellarastro
theconversation.com
How NASA’s Nancy Grace Roman Space Telescope will open a window into the Milky Way
From supernovae in distant galaxies to the packed centre of the Milky Way, the new Roman telescope will help us see and understand the ever-changing cosmos.
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Prof. Abel Méndez @profabelmendez.bsky.social · 29/09/2026
I’m truly impressed by the recent developments in AI. It feels like we’re saving years of work and opening possibilities that seemed out of reach not long ago. We’ve been quietly building toward something, and we’re getting very close. More soon. 👀 #AreciboWow
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Prof. Abel Méndez @profabelmendez.bsky.social · 28/09/2026
Stellar Pulsations Suggest Habitable-Zone Planet Around a Massive Star aasnova.org/2026/09/25/s...
aasnova.org
Stellar Pulsations Suggest Habitable-Zone Planet Around a Massive Star - AAS Nova
Researchers use stellar pulsations to detect substellar companions around A-type stars — including what could be a first-of-its-kind exoplanet.
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Prof. Abel Méndez @profabelmendez.bsky.social · 28/09/2026
Help us solve the Wow! Signal. OpenAI’s Codex can now solve a time-consuming computational problem that no other AI platform we tested could handle before. We now need more computing power. You can support our research with gift credits or donations. #AreciboWow phl.upr.edu/support
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Carl Zimmer @carlzimmer.com · 27/09/2026
Four days ago, a scientist was surprised by the news that Anthropic discovered new virus genes for making DNA. He says he’s been studying them for years—and feeding his data to Anthropic’s AI as part of his own research. Coincidence? Here’s my story. nyti.ms/3VSWayc
nyti.ms
Did Anthropic’s A.I. Really Make a Scientific Discovery on Its Own? (Gift Article)
An expert at the University of Copenhagen said his team had been sharing its research with the company’s A.I. model, Claude, and that its new finding matched their work.
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Prof. Abel Méndez @profabelmendez.bsky.social · 28/09/2026
You’re looking at the radio sky as seen by the Big Ear telescope in August 15, 1977. The bright structure near 18 hours in right ascension is the plane of our Galaxy. Keep going between 19 and 20 hours; the short red line to the left is the Wow! Signal. #AreciboWow #RadioAstronomy
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National Radio Astronomy Observatory - NSF NRAO @thenrao.bsky.social · 25/09/2026
🚨 ALMA Ambassadors (Cycle 14, 2027) application deadline approaching! 🚨 Applications are due October 2, 2026. The #ALMA Ambassadors program provides training and funding to early career researchers interested in sharing their ALMA/interferometry expertise at their own institutions. #RadioAstronomy
bit.ly
ALMA Ambassadors Program - Cycle 14
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Max-Planck-Institut für Astronomie @mpi-astro.bsky.social · 25/09/2026
Ever wanted to watch a planet being born? 🔭 Led by MPIA director Myriam Benisty, astronomers have imaged every piece of the puzzle for the first time: the protoplanetary disk, the growing planet #WISPIT 2b, and the gas swirling around it. 🪐 #exoplanet 🔗Read more: www.mpia.de/news/science...
mpia.de
Astronomers produce the first complete picture of (gas) planet formation in action
We present new deep, very high angular resolution observations of the sub-mm continuum (19x13 mas) and 12CO (67x52 mas) emission from the disk surrounding the planet host WISPIT2. Our analysis reveals...
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SETI Institute @setiinstitute.bsky.social · 26/09/2026
What will exoplanet science look like in 25 years? 🔭 Dr. Collin Cherubim thinks we'll have data from Earth-like planets that lets us seriously debate whether we're seeing signs of life. #ICYMI, watch this week’s SETI Live: [LINK] 🧪 #Exoplanets 🔭
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Kevin Hardegree-Ullman @kevinkhu.bsky.social · 23/09/2026
So happy for my friend Allison who got to name this asteroid and meet the asteroid's namesake! 🔭🪗 Now if #exoplanets could catch up with asteroids on the naming front...
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SETI Institute @setiinstitute.bsky.social · 24/09/2026
🌎 A rocky world in another star’s habitable zone has an atmosphere — a first for astronomy. 🔴 TODAY at 2:30 pm PDT, @allplanets.bsky.social talks with lead author Dr. Collin Cherubim on SETI Live. Watch live + bring your questions! 🔗 youtube.com/live/ZnSd-ia... 🧪 #Exoplanets 🔭 #SETI
SETI Live record button logo. Text: A World With Air with Franck Marchis and Collin Cherubim, Thursday, 24 September 2026, 2:30 pm PDT / 5:30 pm EDT. Background: Artist's impression of a rocky world with a faint haze around it. In the distance is a red dwarf star and another planet making a transit across the star. Inset photos: Franck Marchis and Collin Cherubim.
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National Radio Astronomy Observatory - NSF NRAO @thenrao.bsky.social · 23/09/2026
“We are experiencing a second golden age of radio astronomy, enabled by technology-driven advances associated with the fourth industrial revolution.” NSF NRAO’s director Anthony Beasley contributed to this International Telecommunication Union (ITU) article ⤵️ #RadioAstronomy #Astronomy
itu.int
The new golden age of radio astronomy - ITU
According to P.A. Woudt and A.J. Beasley, we are experiencing a second golden age of radio astronomy, enabled by technology-driven advances.
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Prof. Abel Méndez @profabelmendez.bsky.social · 23/09/2026
If AI can do math, what’s the point of mathematicians? www.scientificamerican.com/article/math...
scientificamerican.com
If AI can do math, what’s the point of mathematicians?
What happens when machines surpass the most brilliant human minds? Mathematicians are finding out
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Gijs D Mulders @gijsmulders.com · 23/09/2026
A great thread on rocky (exo) planets with awesome graphics for the #exoplanets feed
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janiceleeastro @janiceleeastro.bsky.social · 23/09/2026
💙 the cover of the HWO-J workshop proceedings✨ iral2.ess.sci.osaka-u.ac.jp/~sumi/HWO_Ja... 🔭🧪☄️ #exoplanet #galactic #extragalactic
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Prof. Abel Méndez @profabelmendez.bsky.social · 23/09/2026
Inside the Eirenesphere: The Interplay of Porosity, Heat Flux and Mineralogy in Exoplanetary Aquable and Habitable Layers arxiv.org/abs/2609.25280
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ClimateBook @climatebook.bsky.social · 20/09/2026
#exoplanets New lava planet paper from a collaboration I am involved in. This paper makes predictions of what kind of atmospheres we should see in our lava planet survey (P.I. Lisa Dang). Paper led by Mariana Sastre arxiv.org/abs/2609.20155 . Advised by Oxford PCDgroup alum Tim Lichtenberg.
arxiv.org
Thermal Evolution of Lava Planets Across System Ages: Predictions for Hell of a Survey
Ultra-short-period (USP) rocky exoplanets can have dayside temperatures high enough to maintain permanent magma oceans, sitting at the intersection of interior geophysics and atmospheric chemistry. Co...
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Prof. Abel Méndez @profabelmendez.bsky.social · 19/09/2026
Those Ancient Giant Fungi Weren’t Fungi After All www.youtube.com/watch?v=7gFg...
youtube.com
Those Ancient Giant Fungi Weren’t Fungi After All
Get 20% off DeleteMe by going to https://joindeleteme.com/SCISHOW and use code SCISHOW to protect your privacy! 400 million years ago, Prototaxites might have towered high above all other…
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Linn Boldt-Christmas @nplinnspace.bsky.social · 18/09/2026
🔭 Really enjoyed stumbling over this paper, and in particular the sass of its title: Saturns Are Not Large Neptunes! Not every day we get a new flavour of #exoplanets — will definitely be using ”Saturnian” from now on 😊 cool work by @niamhk12.bsky.social and others! ✨🪐 arxiv.org/abs/2609.170...
Screenshot of the paper in the link of this post. The section that has been screenshotted is the first part of Section 5 - Conclusions. It reads as follows: 

5 CONCLUSIONS
In this paper we have presented an empirical mass-radius relation
fitted to a sub-sample of the PlanetS catalogue, where inflated giant
planetshave been excluded. Our main results are as follows:
•Weupdatethewell-knownirradiationthresholdforgiantplanet
inflation presented in Demory & Seager (2011), defining 𝑆thr =
99 S⊕, the irradiation below which 90% of giant planets have a
radius excess Δlog 𝑅 < 2𝜎.
•We fitted our mass-radius relation to nine versions of the
inflation-cleaned sample and find that in all cases, a breakpoint was
placedbetweenNeptuneandSaturn,whileineightoutofninethere
wasalsoabreakpoint betweenSaturn and Jupiter.
•Ourbest-fitmass-radiusrelationhasthreebreakpointsandfour
distinctsegments,oneofwhichcorrespondstoaregimeofSaturnian
planets. This newly defined regime is between 54.3 ±2.7 M⊕ <
𝑀 < 257.8 ±10.8 M⊕ and has a slope of 0.270 ±0.007, with a
corresponding radiusrange of 8.0 ±0.5 R⊕< 𝑅 < 12.2 ±0.5 R⊕.
•The lower slope of the Saturnian regime compared to the Nep-
tunian regime (0.668 ±0.007) is consistent with the increased im-
portance of electron degeneracy in hydrogen-rich interiors, and the
corresponding onsetof gravitationalself-compression.
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Remco de Kok @planetremco.bsky.social · 16/09/2026
First radio emission detection for an exoplanet? Interpreted as aurora (and hence a magnetic field for the planet). Ortiz Ceballos+ arxiv.org/abs/2609.16720 🧪🔭 #exoplanets
arxiv.org
Discovery of radio emission from the exoplanet $β$ Pictoris b
Planetary magnetic fields shape atmospheric escape, mediate interactions with stellar winds, and encode information about planetary interiors, yet they have not been directly measured for planets beyo...
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ClimateBook @climatebook.bsky.social · 16/09/2026
#exoplanets An exoplanet terminology question: How do people feel about the term "synodic day"? I'm cleaning up the terminology in my planetary climate book for the second edition, eliminating Solar-System specific terminology
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SpaceAustralia.com @spaceaustralia.com · 18/09/2026
Are millisecond Pulsars, nature's cosmic clocks, as stable as we once thought? A new study by @rami.spaceaustralia.com has reported the discovery of two consecutive profile change events on PSR J0437-4715. www.spaceaustralia.com/feature/disc... 📸 NASA SVS #SpaceAustralia #RadioAstronomy 🔭🧪📡
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CosmicRami 🏳️‍🌈🏳️‍⚧️ @rami.spaceaustralia.com · 18/09/2026
Really nice write up from @drcarpineti.bsky.social for @iflscience.com on our new PSR J0437-4715 double profile change paper results! 👏👏👏 #RadioAstronomy 📡
iflscience.com
Weird Frequency Changes In Brightest Known Pulsar Challenge Regularity Of The Cosmos's Most Accurate Clocks
This is the first time that two "blips" have been spotted consecutively in a pulsar.
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PBS News @pbsnews.org · 18/09/2026
Using fossilized teeth, scientists have finally taken the T. rex's temperature — and it wasn't too different from our own. to.pbs.org/4yIy33q
pbs.org
T. rex had a body temperature similar to our own, study finds
Using fossilized teeth, scientists have finally taken the T. rex's temperature — and it wasn't too different from our own.
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