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@cosmos4u@scicomm.xyz
2026-01-12 00:14:45

In four hours the webcast #PSLV-C62 - a return to flight for this rocket after a launch failure a while ago - carrying EOS-N1 and 15 co-passenger satellites into Sun Synchronous Orbit from the Satish Dhawan Space Centre in India should begin: see isro.gov.in/media_isro/pdf/PSL and isro.gov.in/Mission_PSLV_C62.h for details.

@cosmos4u@scicomm.xyz
2026-01-11 16:20:11

All three astronomy satellites on the Twilight mission has now been deployed, BlackCAT and SPARCS out of sight of the Falcon 9 upper stage cameras, but the departure of #Pandora was beautifully seen - a screencap from the webcast x.com/i/broadcasts/1nAKEEAevzb

@cosmos4u@scicomm.xyz
2026-01-11 14:27:54

The 39 satellites of the Twilight mission are now in orbit, after the launch at 13:44 UTC: see spacex.com/launches/twilight for the deployment timeline (Pandora should be the last of the three space observatories, at 16:12 UTC).

@cosmos4u@scicomm.xyz
2025-12-11 15:39:13

A Thick Volatile Atmosphere on the Ultrahot #SuperEarth TOI-561 b: iopscience.iop.org/article/10. -> NASA’s Webb Detects Thick Atmosphere Around Broiling Lava World: science.nasa.gov/missions/webb

@cosmos4u@scicomm.xyz
2025-12-11 15:36:56

Observation of deuteron and antideuteron formation from resonance-decay #nucleons / „So entstehen leichte Atomkerne“: nature.com/articles/s41586-025 / weltderphysik.de/gebiet/teilch -> Decades-old mystery in particle physics solved: tum.de/en/news-and-events/all-

@cosmos4u@scicomm.xyz
2025-12-11 14:37:56

RE: #Megaconstellation Close Conjunctions: arxiv.org/abs/2512.09643 -> thread scicomm.xyz/@sundogplanets@mas

@cosmos4u@scicomm.xyz
2025-12-11 14:36:18

Multispacecraft Measurements of the Evolving Geometry of the Solar #Alfvén Surface over Half a Solar Cycle: iopscience.iop.org/article/10. -> Astronomers Create First Map of the Sun's Outer Boundary: cfa.harvard.edu/news/astronome

@cosmos4u@scicomm.xyz
2025-12-11 00:43:48

Icy or rocky? Convective or stable? New interior models of #Uranus and Neptune: aanda.org/articles/aa/full_htm -> Uranus and Neptune Might Be Rock Giants: news.uzh.ch/en/articles/media/ - the composition of Uranus and Neptune, the two outer most planets, might be more rocky and less icy than previously thought.

@cosmos4u@scicomm.xyz
2025-12-11 00:27:52

Assessing the metal and rare earth element mining potential of undifferentiated #asteroids through the study of carbonaceous chondrites: academic.oup.com/mnras/article -> Mining asteroids for water and metals explored: ras.ac.uk/news-and-press/resea

@cosmos4u@scicomm.xyz
2025-12-11 00:26:46

Magnetars in Binaries as the Engine of Actively Repeating #FastRadioBursts: iopscience.iop.org/article/10. -> A Unified Explanation for Fast Radio Bursts: aasnova.org/2025/12/10/a-unifi