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cosmos4u.bsky.social

@cosmos4u.bsky.social
710 followers 1.6K following 4K posts
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cosmos4u.bsky.social @cosmos4u.bsky.social · 9h
The leap second is history: as expected CGPM 28 adopted - www.bipm.org/en/-/cgpm-20... - the resolution www.bipm.org/documents/d/... which means that the difference between official time and one determined by the Earth's rotation can now grow to a full hour before action is taken.
bipm.org
2026-10-09-CGPM-2026-Resolutions-Adopted - BIPM
The 28th meeting of the General Conference on Weights and Measures (CGPM), adopted resolutions addressing the future of international timekeeping, the digital transformation of metrology, universal ad...
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Planetarium Bochum @planetariumbochum.bsky.social · 10h
IceCube at home ... zu seinem Vortrag im Planetarium brachte Christian Glaser von der TU Dortmund eine Radioantenne mit, von denen jetzt im Rahmen der Erweiterung des Neutrino-Detektors am Südpol - www.icecube-gen2.de/index_ger.html und icecube-gen2.wisc.edu - hunderte im Eis vergraben werden.
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cosmos4u.bsky.social @cosmos4u.bsky.social · 21h
Multiple simulated spaceflight stressors impact cardiac fibrosis, calcium dynamics, immune function, cytokines and gene variants in Rattus norvegicus: journals.plos.org/plosone/arti... -> A Trip to Mars Could Break Your Heart: www.universetoday.com/articles/a-t... / www.wionews.com/trending/mar...
journals.plos.org
Multiple simulated spaceflight stressors impact cardiac fibrosis, calcium dynamics, immune function, cytokines and gene variants in rat, Rattus norvegicus
Space radiation and microgravity pose significant health risks for astronauts conducting deep space exploration. The impact of galactic cosmic radiation (GCR) and weightlessness alone, and their combi...
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cosmos4u.bsky.social @cosmos4u.bsky.social · 21h
Thrust Faulting and the Late-stage Contraction of the Moon: iopscience.iop.org/article/10.3... -> New Study Reveals How Much the Moon Is Shrinking: airandspace.si.edu/newsroom/pre...
iopscience.iop.org
Thrust Faulting and the Late-stage Contraction of the Moon
Thrust Faulting and the Late-stage Contraction of the Moon, Watters, T. R., Banks, M. E., Nypaver, C. A., Robinson, M. S.
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cosmos4u.bsky.social @cosmos4u.bsky.social · 21h
Nonlocal Evolution of Magnetic Helicity across the Magnetohydrodynamic–Kinetic Interface: iopscience.iop.org/article/10.3... -> New Phenomenon Discovered in the Solar Wind: magazin.tu-braunschweig.de/en/pi-post/s... - TU Braunschweig discovers new mechanism of plasma turbulence in the solar wind.
iopscience.iop.org
Nonlocal Evolution of Magnetic Helicity across the Magnetohydrodynamic–Kinetic Interface
Nonlocal Evolution of Magnetic Helicity across the Magnetohydrodynamic–Kinetic Interface, Iizawa, Masatomi, Narita, Yasuhito, Alberti, Tommaso, Bale, Stuart D., Brandenburg, Axel, Chian, Abraham C.-L., Comişel, Horia, Matsukiyo, Shuichi, Yokoi, Nobumitsu
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cosmos4u.bsky.social @cosmos4u.bsky.social · 21h
A Probabilistic Framework for Incorporating Helioseismic Far-side Active Regions into Surface Flux Transport Models: iopscience.iop.org/article/10.3... -> SwRI-led team develops improved model for mapping the Sun: www.swri.org/newsroom/pre...
iopscience.iop.org
A Probabilistic Framework for Incorporating Helioseismic Far-side Active Regions into Surface Flux Transport Models
A Probabilistic Framework for Incorporating Helioseismic Far-side Active Regions into Surface Flux Transport Models, Jha, Bibhuti Kumar, Upton, Lisa A., Leka, K. D., Chen, Ruizhu, Zhao, Junwei, Hess Webber, Shea, Ugarte-Urra, Ignacio, Jain, Kiran
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cosmos4u.bsky.social @cosmos4u.bsky.social · 21h
The Treble Clef radio phoenix and its old nonthermal filaments: arxiv.org/abs/2607.06659 -> NASA’s Chandra Breaks Down ‘Treble Clef’s’ Galaxy Cluster Collision: science.nasa.gov/missions/cha...
arxiv.org
The Treble Clef radio phoenix and its old nonthermal filaments
By inspecting data from the LOFAR Two-meter Sky Survey (LoTSS), we noticed a peculiar bright and filamentary radio source at low-galactic latitude ($b \approx 0.5 °$). This source, detected also in pr...
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cosmos4u.bsky.social @cosmos4u.bsky.social · 14/10/2026
A spatial map of the atmospheric limb of a hot Jupiter: www.nature.com/articles/s41... -> thread bsky.app/profile/lili... / Trailblazing technique uncovers real shape of scorching-hot exoplanet atmospheres: www.bristol.ac.uk/news/2026/oc...
nature.com
A spatial map of the atmospheric limb of a hot Jupiter - Nature Astronomy
A new method of extracting atmospheric variations around the limb of a hot Jupiter using transmission mapping of JWST data finds a transition between the equator and pole of WASP-17 b. The authors mea...
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ESO @eso.org · 14/10/2026
New milestone reached 🥳 Nearly 500 segments of the main mirror of our ELT have now arrived from Europe at the ELT Technical Facility at our Paranal Observatory in Chile. That is around half of all the segments being made for what will become a 39-metre eye on the sky. 🔭 🧪
A warehouse with metal structures holding white boxes with a blue ESO logo. Image by ESO.
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cosmos4u.bsky.social @cosmos4u.bsky.social · 14/10/2026
Images now three months old ... what is Tianwen-2 *doing*, is it moving closer, is it mapping the target, is it trying out different 'orbits'? The deafening silence about mission progress is ... upsetting.
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Astronomy 🔭 @astronomy.bsky.social · 14/10/2026
All four Artemis II astronauts who flew around the Moon have now officially retired from spaceflight
A group portrait of four astronauts wearing bright orange flight suits with blue accents and NASA patches. They are posed against a dark blue background, with one astronaut holding a helmet.
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cosmos4u.bsky.social @cosmos4u.bsky.social · 14/10/2026
Whether anything of science value was learned during Artemis II is indeed TBD ... the 'science report' out now is mereley a raw collection of crew impressions w/o much context - including actual nonsense like the solar corona 'pulsating'.
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cosmos4u.bsky.social @cosmos4u.bsky.social · 14/10/2026
NASA’s Nancy Grace Roman Space Telescope team completed a marathon of activities to fine-tune the observatory’s vision and prepare the primary instrument for routine use: science.nasa.gov/blogs/roman/... - the Wide Field Instrument’s performance is nearly 30% better than the Roman team predicted.
science.nasa.gov
NASA Roman Team Checks Out Main Instrument, Sharpens Telescope’s Focus - NASA Science
NASA’s Nancy Grace Roman Space Telescope team completed a marathon of activities to fine-tune the observatory’s vision and prepare the primary instrument for
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cosmos4u.bsky.social @cosmos4u.bsky.social · 13/10/2026
Was kommt wohl eher, Artemis IV ... oder die Show mal in NRW? ;-)
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cosmos4u.bsky.social @cosmos4u.bsky.social · 13/10/2026
Two families of multi-planet systems with distinct architectures and stellar hosts: www.nature.com/articles/s41... -> Planetary systems, two distinct families - the host star leaves its signature: www.issibern.ch/planetary-sy...
nature.com
Two families of multi-planet systems with distinct architectures and stellar hosts - Nature Astronomy
Archival data show a pronounced bimodality in the architectures of known multi-planet systems that can be traced back to the interplay of host star properties and planet formation histories, which sha...
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cosmos4u.bsky.social @cosmos4u.bsky.social · 13/10/2026
Teil einer größeren Tour auch anderswo?
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Michael E. Mann @michaelemann.bsky.social · 12/10/2026
Thread on whether we can conclude that the current El Nino event is the largest in a thousand years. Short answer: NO Long answer: Read the thread. bsky.app/profile/mich...
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SpacePolicyOnline @spacepolicyonline.bsky.social · 12/10/2026
NASA's Mars Perseverance rover has earned its name, setting a new "Off-World" record for furthest distance driven by any rover on another world, 28.10 miles (45.22 km), breaking the record of the rover Opportunity at 28.06 mi (45.16 km) from 2004-2018. science.nasa.gov/blogs/persev...
science.nasa.gov
NASA’s Perseverance Sets Off-World Record for Total Distance Driven - NASA Science
NASA’s Perseverance Mars rover has driven farther than any vehicle ever has on the surface of another world. On Oct. 11, the rover’s odometer reached
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cosmos4u.bsky.social @cosmos4u.bsky.social · 12/10/2026
Relativistic effects of PSR~J1856--0039 double neutron star system in a 2.36-hour compact orbit: arxiv.org/abs/2607.27333 -> A new challenger to Einstein’s theory of general relativity: astrobites.org/2026/10/11/a...
arxiv.org
Relativistic effects of PSR~J1856--0039 double neutron star system in a 2.36-hour compact orbit
Compact double neutron star (DNS) systems are unique laboratories for testing gravitational theories and studying DNS mergers. Here we report the properties of a new DNS system, PSR J1856--0039, disco...
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cosmos4u.bsky.social @cosmos4u.bsky.social · 12/10/2026
Close-in planet induces flares on its host star: arxiv.org/abs/2507.00791 -> Young, Close-in Planets Love to Live Dangerously: www.mps.mpg.de/young-close-...
arxiv.org
Close-in planet induces flares on its host star
In the past decade, hundreds of exoplanets have been discovered in extremely short orbits below 10 days. Unlike in the Solar System, planets in these systems orbit their host stars close enough to dis...
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JWST Observer @jwstobserver.bsky.social · 12/10/2026
STScI received 3,203 GO proposals for 138,460 hours (with an additional 8,971 Pure and Coordinated parallel hours requested). This corresponds to an oversubscription of 18:1 with respect to the 7,700 hours offered in #JWST Cycle 6: ow.ly/uqAt50ZWSwG
Illustration of JWST highlighting its golden mirrors, with "Webb Space Telescope" to the right of the mirrors and stars in the background
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ESA Operations @operations.esa.int · 12/10/2026
Check out Sawa’s mission patch, our second space weather nanosatellite mission! ☀️⚡🛰️🌍 The patch design shows the mermaid Sawa, based on a Polish legend. Why? 👉 www.esa.int/ESA_Multimed...
Circular ESA Sawa mission patch. A stylised blue figure emerges beside Earth and reaches towards a bright orange and yellow Sun, surrounded by stars against a black background. A blue, feather-like tail curves across the bottom. The white ESA logo appears at the top and “sawa” at the bottom.
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cosmos4u.bsky.social @cosmos4u.bsky.social · 12/10/2026
Guess what, I've never seen any such accounts in "For You" mode (which I rarely use) - because 'the algorithm' seems to have learned quickly that I prefer anti-MAGA feeds ... of which I'm served a lot. Also the drone story is wrong: substack.com/home/post/p-... and www.patreon.com/joohn/posts/...
substack.com
How a Kinetic Strike on a Russian Tech Giant Was Instantly Weaponized Into a Western Compliance Narrative
Anatomy of an Information Operation
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Sarah Kendrew @sarahkendrew.bsky.social · 12/10/2026
"Oversubscription of 18:1" ☠️ And also: "Due to the increasing number of proposals, and with the goal of fairly distributing the review activity, JWST proposers may be expected to serve as reviewers in future cycles." #JWST 🔭 www.stsci.edu/contents/new...
stsci.edu
JWST Observers Break Another Record in Proposal Submissions
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cosmos4u.bsky.social @cosmos4u.bsky.social · 12/10/2026
How long could volcanic plumes persist in the Venus atmosphere? planetary-research.org/article/view... or arxiv.org/abs/2610.13641 -> blog.planetary-research.org/2026/10/05/h...
planetary-research.org
How long could volcanic plumes persist in the Venus atmosphere? | Planetary Research
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cosmos4u.bsky.social @cosmos4u.bsky.social · 11/10/2026
So you are in contact with all three satellites now?
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cosmos4u.bsky.social @cosmos4u.bsky.social · 11/10/2026
AFAIK the rocket stage was much brighter than Sputnik so most people who saw - and tracked, like in the MOONWATCH programme - the new light in the sky visually actually did so for the stage and not the satellite. Thus Jodrell Bank certainly wasn't "the first in the west to detect it".
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Brian D. Wade @astrobrian.bsky.social · 11/10/2026
#OTD in space! Oct. 11, 1968: Apollo 7 launches into space, NASA's 1st Apollo astronaut crew in orbit #SpaceExploration #HumanSpaceflight www.space.com/space-explor...
space.com
On this day in space! Oct. 11, 1968: Apollo 7 launches into space, NASA's 1st Apollo astronaut crew in orbit
This was the first mission of the Apollo program that carried a crew into space.
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Corey S. Powell @coreyspowell.bsky.social · 11/10/2026
Today in space: The Hera spacecraft is about to perform a hard burn so it can meet up with asteroid Dimorphos. 4 years ago, NASA deliberately crashed a probe into Dimorphos. Starting next month, Hera will map the wreckage. 🧪🔭 www.esa.int/Space_Safety...
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cosmos4u.bsky.social @cosmos4u.bsky.social · 11/10/2026
Why do the 'extremist' always have the better ideas for Europe these days ...
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p.s @p-s-v.bsky.social · 10/10/2026
From Ichi Tanaka "I tried cutting the fireball from this morning (9.10.26) into frames & lining them up The interval between frames is 1/30s, & since the meteor body itself is continuous in the frames before and after, the exposure time per frame is also thought to be 1/30s" x.com/IchiTanaka13...
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Vincent Ledvina @vincentledvina.bsky.social · 10/10/2026
Here we see really gorgeous multi-colored aurora happening in Alkeevsky, Tatarstan, Russia. The geomagnetic latitude-equivalent of this in North America is around New York City, Boise or Chicago.
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cosmos4u.bsky.social @cosmos4u.bsky.social · 09/10/2026
DESI Strong Lens Foundry - Spectroscopic Confirmation of DESI Lens Candidates with VLT/MUSE: iopscience.iop.org/article/10.3... -> Largest 2D Map of the Universe Helps Scientists Discover New Cosmic Magnifying Glasses: noirlab.edu/public/blog/...
iopscience.iop.org
DESI Strong Lens Foundry. IV. Spectroscopic Confirmation of DESI Lens Candidates with VLT/MUSE
DESI Strong Lens Foundry. IV. Spectroscopic Confirmation of DESI Lens Candidates with VLT/MUSE, Lin, Emerald, Toro Bertolla, Ivonne, Cikota, Aleksandar, Huang, Xiaosheng, Storfer, Christopher, Tamargo-Arizmendi, Marcos, Schlegel, David J., Sheu, William, Suzuki, Nao
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cosmos4u.bsky.social @cosmos4u.bsky.social · 09/10/2026
On the coronal origin of magnetic switchbacks in the solar wind: www.nature.com/articles/s41... -> Solar Orbiter tracks origin of mysterious magnetic switchbacks: www.esa.int/Science_Expl...
nature.com
On the coronal origin of magnetic switchbacks in the solar wind - Nature Astronomy
Solar Orbiter’s detection of the ion composition of a magnetic switchback reveals its origin in hot coronal loops, implicating interchange reconnection as the release mechanism of the solar wind plasm...
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cosmos4u.bsky.social @cosmos4u.bsky.social · 09/10/2026
Not now: www.nature.com/articles/s41...
nature.com
On the coronal origin of magnetic switchbacks in the solar wind - Nature Astronomy
Solar Orbiter’s detection of the ion composition of a magnetic switchback reveals its origin in hot coronal loops, implicating interchange reconnection as the release mechanism of the solar wind plasm...
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Marco Langbroek @marcolangbroek.bsky.social · 09/10/2026
Public executions happen in countries like Iran, Afghanistan, North Korea, they happened in Islamic State territory. They do not happen in civilized countries: and any Nation that reintroduces them, is no longer civilized. Only psychopaths cheer this.
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Daily Grail @dailygrail.com · 09/10/2026
"Throughout histories of Western colonization, even in those few cases when contactees were intended to be protected, contact has led to brutal violence, pandemics, enslavement and genocide." theconversation.com/first-contac...
theconversation.com
First contact with aliens could end in colonization and genocide if we don’t learn from history
Three Indigenous studies scholars draw from colonial histories and explain why listening for alien life can have ethical ramifications.
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Daniel Pomarède @pomarede.bsky.social · 09/10/2026
Francis Halzen and the anatomy of a solo Nobel Prize 🧪🔭 @history.aip.org www.aip.org/history/halz...
aip.org
Francis Halzen and the anatomy of a solo Nobel Prize
AIP History Weekly Edition: October 9, 2026
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cosmos4u.bsky.social @cosmos4u.bsky.social · 09/10/2026
Water Cloud and Chemical Modulations in the Coldest Brown Dwarf: arxiv.org/abs/2609.20664 -> Discovery marks the first detection of variable water clouds outside of our solar system: news.arizona.edu/news/discove...
arxiv.org
Water Cloud and Chemical Modulations in the Coldest Brown Dwarf
We present high signal-to-noise, medium resolution (R ~ 1000), time-series JWST/NIRSpec spectra of WISE 0855 (265K), the coldest known brown dwarf. Medium resolution, time-series spectroscopy gives us...
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cosmos4u.bsky.social @cosmos4u.bsky.social · 09/10/2026
Discovery of Isolated, Quenched Candidate Backsplash Dwarf Galaxies near M101: iopscience.iop.org/article/10.3... -> A UC Berkeley undergraduate’s research leads to an astronomical first: news.berkeley.edu/2026/10/06/a...
iopscience.iop.org
Discovery of Isolated, Quenched Candidate Backsplash Dwarf Galaxies near M101
Discovery of Isolated, Quenched Candidate Backsplash Dwarf Galaxies near M101, Shapiro, Julian
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cosmos4u.bsky.social @cosmos4u.bsky.social · 09/10/2026
A fast radio burst from the first 3 billion years of the Universe: arxiv.org/abs/2508.01648 -> Webb Measures Distance to Farthest Fast Radio Burst, Suggesting Origin: science.nasa.gov/missions/web... / theconversation.com/astronomers-... / www.spaceaustralia.com/feature/10-b...
arxiv.org
A fast radio burst from the first 3 billion years of the Universe
Fast radio bursts (FRBs) are enigmatic millisecond-duration signals which encode otherwise unattainable information on the plasma which permeates our Universe, providing insights into magnetic fields ...
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cosmos4u.bsky.social @cosmos4u.bsky.social · 09/10/2026
Active Galactic Nucleus Tori - Potential Birthplace to Millions of Planets: iopscience.iop.org/article/10.3... -> Black holes could birth planets and even stars, study finds: www.wionews.com/trending/not...
iopscience.iop.org
Active Galactic Nucleus Tori: Potential Birthplace to Millions of Planets
Active Galactic Nucleus Tori: Potential Birthplace to Millions of Planets, Mishra, Bhupendra, Lyra, Wladimir, McKernan, Barry, Low, Mordecai-Mark Mac, Ford, K. E. Saavik, Cook, Harrison E.
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Riding With Robots @ridingrobots.bsky.social · 08/10/2026
From NASA Media are invited to join NASA for a teleconference at 4 p.m. EDT, Thursday, Oct. 15, to preview the agency’s contributions to JAXA's Martian Moons eXploration (MMX) mission, which will explore the Red Planet's moons and return a sample of Phobos. go.nasa.gov/4B2qNBI
go.nasa.gov
NASA Briefing to Highlight Contributions to Martian Moons Mission - NASA
Media are invited to join NASA for a media teleconference at 4 p.m. EDT, Thursday, Oct. 15, to preview the agency’s contributions to JAXA’s (Japan Aerospace
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AAS Press Office @press.aas.org · 08/10/2026
NASA Advances Laser Interferometer Space Antenna (LISA) Mission Contributions with New Test Telescope science.nasa.gov/missions/lis...
science.nasa.gov
NASA Advances LISA Mission Contributions With New Test Telescope - NASA Science
NASA has taken the next step in the process of developing a new all-glass telescope for the LISA (Laser Interferometer Space Antenna) mission, a space
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cosmos4u.bsky.social @cosmos4u.bsky.social · 08/10/2026
There is already communication with two of the three: amsat-dl.org/en/erminaz-2... - no idea how quickly they are drifting apart after the surprise release from OSSIE-D.
amsat-dl.org
ERMINAZ-2 satellites are transmitting their first signals!
The three small satellites from Bochum operated by AMSAT-DL are already in space, having been launched earlier than planned. Two of them have since made contact with the ground station at the Bochum O...
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Simon Proud @simonsat.bsky.social · 08/10/2026
Just a few weeks after launch, and Sentinel-3C is sending back beautiful views of our planet! Still lots to do before the satellite is ready for operations but it's a big step along to path that we have such excellent data already. Congrats to the whole team. 🛰️
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cosmos4u.bsky.social @cosmos4u.bsky.social · 08/10/2026
SPHEREx 0.75–5 μm Spectra for a Sequence of Nearby Brown Dwarfs: iopscience.iop.org/article/10.3... -> NASA’s SPHEREx Telescope Sees Menagerie of Brown Dwarfs: www.nasa.gov/missions/sph...
iopscience.iop.org
SPHEREx 0.75–5 μm Spectra for a Sequence of Nearby Brown Dwarfs
SPHEREx 0.75–5 μm Spectra for a Sequence of Nearby Brown Dwarfs, Rustamkulov, Zafar, Kirkpatrick, J. Davy, Akeson, Rachel, Werner, Michael W., Ashby, Matthew L. N., Chang, Tzu-Ching, Chen, Shuang-Shuang, Cooray, Asantha, Crill, Brendan P., Doré, Olivier, Dowell, C. Darren, Faisst, Andreas L., Hui, Howard, Jeong, Woong-Seob, Kang, Miju, Korngut, Phil M., Lisse, Carey M., Masters, Daniel C., Melnick, Gary J., Nguyen, Chi H., Paladini, Roberta, Tolls, Volker, Yang, Yujin, Zemcov, Michael
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Jonathan Serrie @jonathanserrie.bsky.social · 08/10/2026
Splashdown! Crew-12 | Image credit: NASA/SpaceX
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cosmos4u.bsky.social @cosmos4u.bsky.social · 08/10/2026
But ERMINAZ-2 is actually three satellites (each one 5 x 5 x 5 cm) - aren't they tracked separately?
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cosmos4u.bsky.social @cosmos4u.bsky.social · 08/10/2026
The Crew-12 is back: www.youtube.com/watch?v=x6p9... = ongoing live feed, extraction under way, www.nasa.gov/blogs/spaces... = an update.
youtube.com
NASA's SpaceX Crew-12 Re-Entry & Splashdown
YouTube video by NASA
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