#exoplanets — Public Fediverse posts

NASA’s Nancy Grace Roman space telescope launches

https://fed.brid.gy/r/https://www.popsci.com/science/nancy-grace-roman-space-telescope-launch/

Sorry, aliens didn’t build Dyson spheres around these dwarf stars

https://fed.brid.gy/r/https://www.popsci.com/science/dyson-sphere-dwarf-star/

🔭 The Nancy Grace #Roman Space Telescope (#RomanSpaceTelescope) is expected to launch into space on a Falcon Heavy rocket 🚀 on Sunday, 30 August 2026, at 13:26 CEST. One of its key objectives is to explore the history of the Universe.

On board is hardware and expertise provided by #MPIA for the Coronagraph Instrument (CGI). It is designed to directly image and characterises #exoplanets, particularly cold gas planets in tight orbits. 👀

https://www.mpia.de/news/science/2026-08-roman-launch

6324 confirmed #Exoplanets 🪐 https://science.nasa.gov/exoplanets/discoveries-dashboard/
223 #Terrestrial 🌏 https://science.nasa.gov/exoplanets/exoplanet-catalog/?planet_type=Terrestrial&content_list=true

1 parsec = 3.26 light-years or 206,265 au https://en.wikipedia.org/wiki/Parsec

Weekly Update from the Open Journal of Astrophysics 25/07/2026

It’s time once more for another Saturday update of activity at the Open Journal of Astrophysics. Since the last update we have published a further nine papers, bringing the number in Volume 9 (2026) to 160 and the total so far published by OJAp up to 608.

I will continue to include the posts made on our Mastodon account (on Fediscience); these announcements also show the DOI for each paper.

The first paper to report this week was published on Tuesday 21st July in the folder Cosmology and Nongalactic Astrophysics. The title is “Characterization of the Polarization Beam Response of SPT-3G Using Point Sources” by Tijmen de Haan (Institute of Particle and Nuclear Studies, Ibaraki, Japan) and an international cast of 101 others. This study presents measurements of the South Pole Telescope’s polarized beam response, indicating minimal sidelobe depolarization. The findings suggest potential explanations for frequency-dependent residuals in power spectrum analysis.

The overlay for this paper is here

You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

https://fediscience.org/@OJ_Astro/116956682988048349

The second paper for this week, also published on Tuesday 21st July but in the folder Earth and Planetary Astrophysics is: “Exploring TRAPPIST-1 Climate States with an Energy Balance Model” by Jacob Haqq-Misra (Blue Marble Space, USA). The study uses a modified HEXTOR energy balance model to predict climate states of terrestrial planets orbiting low-mass stars, suggesting partial to complete ice cover for TRAPPIST-1 e and f.Abstractfor Exploring TRAPPIST-1 Climate States with an Energy Balance Model.

The overlay looks like this:

The official version of the paper can be found on arXiv here and the Fediverse announcement here:

https://fediscience.org/@OJ_Astro/116956824712105776

The third paper of the week, also published on Tuesday 21st July, but in the folder Astrophysics of Galaxies is “A first systematic study of [OIII] 88μm at z>8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years” by Hiddo Algera (Institute of Astronomy and Astrophysics, Taipei, Taiwan) and 37 others from all around the world. This paper presents deep observations of four UV-bright, gravitationally lensed galaxies, revealing an ionized outflow in one and highlighting the diagnostic power of [O III]88 μm in studying galaxies in the early Universe.

The overlay for this one is here:

The final, accepted version can be found on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116956879536002543

The fourth paper of the week, published on Thursday 23rd July in the folder Astrophysics of Galaxies, is “Mapping CO Ice in a Star-Forming Filament in the 3 kpc Arm with JWST” by Savannah Gramze (U. Florida, USA) and 16 others based all around the world. This paper shows that JWST observations and ALMA Band 3 data reveal that 50-88% of CO gas in a star-forming filament is locked in ice; corrections are needed for mass measurements in such systems.

The overlay for this one is here:

You can read the final version of this one on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116968030387635232

The fifth paper of the week, also published on Thursday 23rd July but in the folder High-Energy Astrophysical Phenomena, is “Viscously Spreading Accretion Disks around Black Holes: Implications for TDEs, LFBOTs and other Transients“. This article presents a time-dependent model of accretion disks around black holes, explaining late-time emission in tidal disruption events and luminous fast blue optical transients and future detectability of such events.

The overlay for this one is here:

You can read the final version of this one on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116968076410638262

The sixth paper of this week is “Characterising the response of an International LOFAR Station” by Letizia Vincetti (Trinity Collge Dublin, Ireland) and 9 others based in Ireland, USA, The Netherlands and Sweden. This was also published on Thursday July 23rd and is in the folder Instrumentation and Methods for Astrophysics. The article presents an investigation of the performance and calibration challenges of phased-array radio interferometers, using the Irish LOFAR station as a case study, highlighting the importance of accurate beam modelling, etc.

The overlay for this one is here:

You can find the final accepted version on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116968134127626260

The seventh paper of this week is “Exo Skryer: A JAX-accelerated sub-stellar atmospheric retrieval framework” by Elspeth K.H. Lee (U. Bern, Switzerland). Published on Friday 24th July in the folder Earth and Planetary Astrophysics, this article introduces “Exo Skryer”, a new, efficient framework for exoplanet and brown dwarf atmospheric research, capable of handling large data sets and complex models.

The overlay for this one is here:

You can find the final accepted version on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116974013616759329

The (penultimate) eighth paper of this week is “GCR Spectra Reconstructed with Neutron Monitor Yield Function and Artificial Neural Networks: Comparison of Two Methods” by Stepan A. Siruk (Moscow Engineering Physics Institute MEPhI, Russia) and four others, all based in Russia. Published on Friday 24th July in the folder Instrumentation and Methods for Astrophysics, this article presents a framework using artificial neural networks and neutron monitors to reconstruct cosmic-ray energy spectra, providing data even in the absence of direct satellite observations.

The overlay for this one is here:

You can find the final accepted version on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116974048321854911

And finally for this week we have “The failed failed-supernova scenario of M31-2014-DS1” by Noam Soker (Technion, Israel), a paper which challenges the failed-supernova theory for the fading of the yellow supergiant event M31-2014-DS1, suggesting it requires unlikely parameters and supports an alternative scenario involving violent binary interaction. This was published on Friday 24th July in the folder High-Energy Astrophysical Phenomena.

The overlay for this one is here:

You can find the final accepted version on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116974082942533765

And that concludes the update of this week’s business. As it was foretold, the total number of publications at OJAp has now passed the 600 mark, and the likely number for 2026 is around 300. We published a paper in five of the six astro-ph categories this week, but still haven’t had a week when we’ve published a full house with at least one in all six…

‘Super weird’ object may be space’s first confirmed exomoon

https://fed.brid.gy/r/https://www.popsci.com/science/first-confirmed-exomoon/

🔭 #Roman is scheduled to launch on Sunday, Aug. 30. Roman will conduct three main wide-field surveys and search for #exoplanets. The telescope’s capabilities will allow scientists to map billions of #galaxies 🌌 https://www.nasaspaceflight.com/2026/07/roman-prelaunch-update/

Roman will detect #NEOs ☄️ as a natural result of its wide-field cosmology surveys. NEOs are #asteroids within 1.3 astronomical units from the Sun. Potentially hazardous asteroids are Atens or Apollos greater than 140 meters in diameter 📏 https://arxiv.org/html/2508.14412v1

The sun’s violent death could look like this

https://fed.brid.gy/r/https://www.popsci.com/science/sun-death-white-dwarf/

Climate research shows: We must adapt our habitats to survive. 🌀#globalwarming #Europe #Germany #climateresearch #habitats #Earth #astrobiology #extremeweather #habitability #Underwater #ocean #exoplanets #Architecture #heatwave #climatechange

Europe is sweating. Time for underground structures and ocean habitats! 🌊🏢#globalwarming #Europe #Germany #climateresearch #habitats #Earth #astrobiology #extremeweather #habitability #Underwater #ocean #exoplanets #Architecture #heatwave #climatechange

Rethinking life on Earth. 🌍 Can planets and exoplanets teach us how to survive heatwaves? #globalwarming #Europe #Germany #climateresearch #habitats #Earth #astrobiology #extremeweather #habitability #Underwater #ocean #exoplanets #Architecture #heatwave #climatechange

If advanced civilizations should be everywhere, why is the cosmos silent? Exploring the Great Filter, the most unsettling solution to the Fermi Paradox.

Read: https://formulon.blog/2026/06/20/the-great-filter/

#GreatFilter #FermiParadox #Astrobiology #SETI #AlienLife #SpaceScience #Cosmology #Astronomy #ScienceBlog #Universe #Exoplanets #Formulon

3/3 Led by Sebastian Zieba and Laura Kreidberg, this study is a collaboration between MPIA and the Center for Astrophysics | Harvard & Smithsonian. It marks a shift from mere detection to the systematic geological mapping of alien worlds.

#Astronomy #Exoplanets #Geology #MPIA #Science #JWST

Link directly to ESA's image release "Plato readies for space-like tests": https://www.esa.int/ESA_Multimedia/Images/2026/03/Plato_readies_for_space-like_tests

#ESA #PLATOMission #Exoplanets #Space

Join us for the latest lecture of "Wissenschaft für Alle"!
Discover new planets with Bernd Scharbert (Volkssternwarte Darmstadt) 🌍 German only.

Online or on site: Wednesday, 18 March 2026, 2 PM

Online event: https://gsi-fair.zoom.us/j/98465545116#success
Meeting-Code: wfa
On site registration: https://indico.gsi.de/event/23431/registrations/7200/
Location: GSI/FAIR #Darmstadt

© NASA JPL-Caltech, R. Hurt, K. Miller (Caltech IPAC)
#lecture #science #WissenschaftfürAlle #WfA #exoplanets #discovery

In #Goettingen, the upcoming Astronomy Day on March 28th will offer lectures, planetarium shows and skygazing. Topics will be #moon, #planets, #exoplanets for kids, #Voyager and much more! In German. More info here: https://www.mps.mpg.de/astronomietag2026
@unigoettingen @thegoecampus

#Astronomietag #Astronomietag2026 #Planetarium #Teleskop #AstronomyDay #FPG #FörderkreisPlanetariumGöttingen #IAG #UniGöttingen #MPSGöttingen

🌌 The Fermi paradox begins with a simple question: a universe rich with stars and worlds, and a sky that still feels quiet. How do we separate a true signal from our own interference, and what might silence be telling us?

✍️ Full exploration: https://TPC8.short.gy/lnUnZ9ab

🔭 In the hush between signals, curiosity learns to listen.

#FermiParadox #SETI #Astronomy #Science #Exoplanets #TPC8

Neue Studie zu Klima-Kipppunkten: Das Erdsystem könnte näher an kritischen Schwellen stehen als bisher gedacht. 🌍
#Astrobiology #Habitability #Exoplanets #EarthSystemScience #ClimateChange #TippingPoints #PlanetaryBoundaries #FutureOfEarth

How astronomers plan to detect the signatures of alien life in the atmospheres of distant planets
#Science #NASA #Astronomy #Exoplanets #AlienLife #Astrobiology #Space #JamesWebb #JWST #ESA #PlatoMission #ArielMission #HabitableWorlds #Universe #Cosmos
https://the-14.com/how-astronomers-plan-to-detect-the-signatures-of-alien-life-in-the-atmospheres-of-distant-planets/

@DrReneHeller of #MPSGoettingen just opened the first session of the extra-solar planet splinter at the #ag2025goerlitz meeting. Current program: https://ag2025.astronomische-gesellschaft.de/view_splinter.php?session=ExoPlanets

#AG2025Goerlitz #GermanAstroAoc #Exoplanets #ExtrasolarPlanets #PLATO #PLATOMission

Scientists from #MPSGoettingen are contributing to and organizing part of the program of the Annual meeting of the German Astronomical Society #ag2025goerlitz

https://ag2025.astronomische-gesellschaft.de/program/index.php

In particular, the splinter session on "Observation and Characterization of Extrasolar Planets" is co-organised by @DrReneHeller https://ag2025.astronomische-gesellschaft.de/view_splinter.php?session=ExoPlanets

and the splinter session on "Protoplanetary disks and planet formation at high-angular resolution" is co-organised by @astrojoanna https://ag2025.astronomische-gesellschaft.de/view_splinter.php?session=PlanetFormation

Looking forward to the line-up of talks over the next coming days!

#AG2025Goerlitz #PlanetFormation #ExtrasolarPlanets #ExoPlanets #PLATO #PLATOMission #MPSGoettingen #CHEOPS #JWST #Astrodon #Görlitz

#TRAPPIST-1

Le télescope spatial James Webb lève un premier voile sur une planète tempérée du système TRAPPIST-1

https://www.insu.cnrs.fr/fr/cnrsinfo/le-telescope-spatial-james-webb-leve-un-premier-voile-sur-une-planete-temperee-du-systeme

#exoplanets #TRAPPIST1 #astronomy #astrophysics #astrodon #space #science #news #JWST #Webb #telescope

1/ 🚀 Rethinking planet #formation:

Using the James #Webb Space Telescope #JWST, a team of researchers led by Stockholm University’s PhD student Jenny Frediani have found a protoplanetary disc with strikingly high levels of CO₂ – and barely any #water. 🔭

#MPIA's Maria Claudia Ramírez-Tannus leads the research program XUE, from which the study originates.
#exoplanets

🔭 More details here: https://www.su.se/english/news/unusual-carbon-dioxide-rich-disc-detected-around-young-star-challenges-planet-formation-models-1.841751

2/ 💡 The research was carried out in the framework of the #exoALMA collaboration using the #ALMA radio interferometer to resolve small details of protoplanetary discs. MPIA Director Myriam Benisty is an exoALMA Co-PI and a co-author of the study. #Exoplanets

👉 https://www.mpia.de/news/2025-exoalma

What's this "transit method" that the #ESA #PLATOmission team will be using to detect extrasolar planets? Experience transits firsthand in our pendulum experiment that models how a planet passes in front of its star and changes the brightness that we can observe, as René Heller demonstrates in this video:

@ndw_goe

#ndwgoe #ndwgoemps #goettingen #mpsgoettingen #exoplanets

What do these two things have in common? We'll tell you all about it tomorrow! And you'll get to play with one of them, too 🎾 🔭

@ndw_goe @DrReneHeller @drreneheller.bsky.social‬

#ndwgoe #ndwgoemps #mpsgoettingen #goettingen #platomission #exoplanets

#ndwgoecountdown Vortrag – Die Entdeckung von Planeten um ferne Sterne mit der PLATO-Mission

Neben den acht Planeten unseres Sonnensystems wurden um andere Sterne bereits über 5800 Planeten entdeckt. Am MPS bereiten wir in Zusammenarbeit u.a. mit der ESA die Weltraummission PLATO vor. Mit PLATO werden wir bald tausende neuer Exoplaneten entdecken.

https://www.goettinger-nacht-des-wissens.de/nach-format/vortrag/

@DrReneHeller @ndw_goe @thegoecampus

#ndwgoe #ndwgoemps #goettingen #mpsgoettingen #ESA #PLATOmission #exoplanets

#ndwgoecountdown Exoplaneten – Entdeckung von Planeten um ferne Sterne

Tausende Planeten, die um ferne Sterne kreisen, sind bisher bekannt. Doch wie entdeckt man einen Planeten, der viele Lichtjahre von uns entfernt ist? Im Mitmachexperiment erläutern Forscher*innen eine der gängigsten Methoden und berichten von der künftigen Weltraummission PLATO und ihrer Suche nach erdähnlichen Planeten.

@ndw_goe @thegoecampus

#ndwgoe #ndwgoemps #goettingen #mpsgoettingen #ESA #PLATOmission #exoplanets

An international collaboration called exoALMA is using our telescopes to s peer through the dusty disks where planets are born. Thanks to their newly developed advanced imaging techniques, exoALMA has revealed the most sharp images of young solar systems, as never seen before. This research project has just published 17 papers, with several more coming on the several months.

The exoALMA collaboration is using ALMA to conduct a comprehensive planet hunting campaign in the sub-mm regime. They claim to be the first to focus on still-forming planets, instead of fully formed ones.

Unlike traditional planet-hunting methods that look for a young planet's direct light, exoALMA looks for the effects planets have on their surroundings. This approach potentially allows to detect much younger planets than ever before. "It's like trying to spot a fish by looking for ripples in a pond, rather than [the] fish itself.”

More information on the link below:

https://www.almaobservatory.org/en/press-releases/exoalma-survey-reveals-incredible-images-of-structures-in-protoplanetary-disks/

#ALMA #AtacamaLargeMillimeterSubmillimeterArray #AtacamaLargeMillimeterArray #exoALMA #ExoPlanets #YoungStars #StarFormation #PlanetFormation #YoungPlanets

#JWST catches #Star vaporizing the #Hottest rocky #Exoplanets : Medium

How #NASA’s #Lunar #Trailblazer Will Make a Looping #Voyage to the #Moon : NASA

#Microplastics block #Blood flow in the #Brain, #Mouse study reveals : Nature

Check our latest #KnowledgeLinks

https://knowledgezone.co.in/resources/bookmarks

Quite mad how many world the Tau Ceti system could have, but it suits my purposes nicely...

https://en.wikipedia.org/wiki/Tau_Ceti#Planetary_system

#Astrosynthesis #TauCeti #Space #Exoplanets

Coming along in great strides: ESA’s PLATO observatory!

OHB System AG readies for integration of 26 cameras https://www.ohb.de/en/news/esas-plato-observatory-ohb-system-ag-readies-for-integration-of-26-cameras

#ESA #PLATOmission #Exoplanets #Space #Astrodon #OHB

NASA’s Fiscal Year 2025 Budget Request: Advancing U.S. Leadership in Space Exploration and Scientific Discovery

#AI #Artemis #Asteroids #Astronauts #Astronomy #Astrophysics #BlueOrigin #Comets #CommercialSpace #Communications #CSA #DeepSpace #Earth #Energy #Exoplanets #GAO #HumanLandingSystem #HumanSpaceflight #Infrastructure #InternationalSpaceStation #Jupiter #KennedySpaceCenter #Launch #LEO #Life #Lunar #Mars #Materials #Medicine #Moon #NASA #NorthropGrumman #Orion #PlanetaryScience #Research #Satellites #Science #SolarSystem #SpaceExploration #SpaceIndustry #SpaceLaunchSystem #SpaceStation #Spacecraft #Spaceflight #Spacesuits #STEM #Technology #UK #UnitedStates #EditorSPicks #IndustryReportsPapersAndEBooks #News #Noteworthy #SocioEconomic #SpaceEconomy

https://newspaceeconomy.ca/2024/03/12/nasas-fiscal-year-2025-budget-request-advancing-u-s-leadership-in-space-exploration-and-scientific-discovery/

Plato, ESA’s next-generation planet hunting mission, has passed its spacecraft critical design review on 5 March 2024

https://www.cosmos.esa.int/web/plato/plato-sc-cdr

#ESA #PLATO #PLATOmission #Exoplanets #Astrodon #Space

I've got a good feeling about this one, if the planet itself is not habitable (to us) then maybe it's moons?
Less than twelve light years away and popular star in Science Fiction.
#Exoplanets #TauCeti

https://en.wikipedia.org/wiki/Tau_Ceti_f

#exoplanets #spaceart

Artist’s impression of the ultracool dwarf star TRAPPIST-1 from the surface of one of its planets

Credit: ESO/M. Kornmesser

https://www.eso.org/public/images/eso1615a/

#universe #astronomy #astrophysics #astrodon #space #art #life #science #exoplanet #planet #planets #trappist1 #star #ultracool #dwarfstar #astroart #eso

I still find it ... curious, but very #astronomy on-brand that one of the prime and best studies stars with earth-sized #exoplanets is named #TRAPPIST1, which comes from the telescope #backronym name that it was discovered with (Transiting Planets and Planetesimals Small Telescope), which of course is Belgian, since #Trappist #beer is a signature drink in #Belgium.

So we have exoplanets, named after a beer, named after an order of #monks, named after a city in #France.

Classic astronomers!

"TRAPPIST-1 is an ultra-cool red dwarf star in the constellation Aquarius."
😎 No kidding. 😎

I just had worked out the calculations and how to illustrate the results, and so I quickly made this approximation of what you would see in the sky during day on the planet TRAPPIST-1 e.

The seven planets are all quite large and really close to the star which means they are as visible as the Moon to us. And you could see the change in size for the planets every day.

#astronomy #trappist1 #exoplanets

Thread: 6.2/6

As time goes on, new telescopes like the #JamesWebbSpaceTelescope, the #Earth’s premier space science observatory that launched in 2021, will further expand our understanding of #Exoplanets. Who knows what kind of #ExtrasolarPlanets we will find next!

Learn more about the James Webb Space Telescope: https://webb.nasa.gov/

#SpaceMastodon #Spacedon #Space #Astronomy #Astrodon #ScienceMastodon #Sciencedon #Science #JWST #Webb

Thread: 6.1/6

30 years ago, we did not even know #Planets could exist around other #Stars. Now, we know of thousands—and some of those planets are possibly habitable. New #Exoplanet discoveries are shaking up the field of planetary formation and causing us to rethink our ideas of what stars could host planets and how planets form.

#SpaceMastodon #Spacedon #Space #Astronomy #Astrodon #ScienceMastodon #Sciencedon #Science #Exoplanets #ExtrasolarPlanets

Thread: 2.2/x

Photo: This artist’s concept compares #Earth (left) to the new planet, called #Kepler452b.

#NASA considers this #Exoplanet and its #Star to be the closest analog to Earth and #Sun so far. Though it’s 60% larger than Earth in diameter, Kepler-452b is thought to be rocky and within the habitable zone of a G-type star similar to ours.

#SpaceMastodon #Spacedon #Space #Astronomy #Astrodon #ScienceMastodon #Sciencedon #Science #KeplerSpaceTelescope #KST #Exoplanets #ExtrasolarPlanets

Thread: 2.1/x

Some of the biggest questions we humans like to ask are, “Is there life out there in the universe?” and “Are there other solar systems out there with planets just like ours?” To answer these questions, astronomers have built larger & more advanced telescopes to try to find #Planets outside of our own neighborhood, specifically those similar to our own world.

*expand for photo info

#SpaceMastodon #Space #Astronomy #Astrodon #ScienceMastodon #Science #Exoplanets #ExtrasolarPlanets