@cosmos4u@scicomm.xyz2026-02-20 05:00:22
Caltech astrophysicist fatally shot on porch of his rural SoCal home: #Grillmair was a specialist for #TidalStreams of #galaxies as his publications (as first author) listed in https://ui.adsabs.harvard.edu/search/q= first_author:"Grillmair"&sort=date desc, bibcode desc&p_=0 show.
@ruth_mottram@fediscience.org2026-04-20 18:07:35
A #podcast so good I have been saving and treasuring every episode until I have undisturbed time to listen.
Utterly absorbing..
@… 's #Podyssey: 2.3 EUROPA I: Quite a lot of bull
Episode webpage: https://feeds.megaphone.fm/podyssey
Media file: https://traffic.megaphone.fm/NSR9220472084.mp3?updated=1775627107
@vosje62@mastodon.nl2026-01-21 11:02:41
@zachleat@zachleat.com2026-02-20 15:44:41
@… @… I added that to https://www.zachleat.com/web/html-logo/
@cosmos4u@scicomm.xyz2026-03-19 19:07:23
Distinct Rotational Evolution of Giant Planets and Brown Dwarf Companions: #exoplanet spins confirms long-predicted relationship between planetary mass and rotation: https://keckobservatory.org/kpic-spin-survey/ with https://www.dropbox.com/scl/fo/w5f4ntav4pybpale8c6p6/ANbPpoQxnCEIG2i-0vL5Ll8?rlkey=cxblu3u2n3ovocew0qch46opt&e=1&st=fgpk8v3u&dl=0
@cosmos4u@scicomm.xyz2026-02-20 00:50:04
45 minutes til the simulated #ArtemisII launch, and according to https://www.youtube.com/watch?v=-KYhqePsm38 and https://www.nasa.gov/blogs/missions/2026/02/19/live-artemis-ii-wet-dress-rehearsal-coverage/ the 2ns wet dress rehearsal is going to plan. How the outcome will be reported: https://www.nasa.gov/news-release/nasa-to-provide-coverage-of-artemis-ii-wet-dress-rehearsal/
@cosmos4u@scicomm.xyz2026-03-19 19:27:06
The dramatic transition of the extreme Red #Supergiant WOH G64 to a Yellow Hypergiant: https://arxiv.org/abs/2411.19329 - this 2024 paper, already mentioned by me in connection with other observations of that star in https://skyweek.wordpress.com/2024/11/24/allgemeines-live-blog-ab-dem-24-11-2024/ ("Die enge zirkumstellare Umgebung des Roten Überriesen WOH G64 ..."), has now been formally published: https://www.nature.com/articles/s41550-026-02789-7.epdf?sharing_token=7UR_XvTAZerqnMHPRyA0LtRgN0jAjWel9jnR3ZoTv0N7FejDObMF3AkHA10E71tuouxDX6yP8bM1QCFKGVVZLl8bT37LMadR8u4ukhACilFI60-Zxl0e00Bc0v3qXkG29yIQr7uTE0sd644q7We4d6ay5Tblhxc-UABROlAnuDs=
@cosmos4u@scicomm.xyz2026-02-19 22:28:43
#Starliner Propulsion System Anomalies during the Crewed Flight Test - Investigation Report: https://www.nasa.gov/wp-content/uploads/2026/02/nasa-report-with-redactions-021926.pdf -> Agency leaders are discussing the findings of investigations into the 2024 crewed test flight of Boeing Starliner to the International Space Station: https://www.youtube.com/watch?v=geneWmI9ZMY -> NASA Releases Report on Starliner Crewed Flight Test Investigation: https://www.nasa.gov/news-release/nasa-releases-report-on-starliner-crewed-flight-test-investigation/
@cosmos4u@scicomm.xyz2026-02-19 22:00:47
HOLISMOKES XIX - SN 2025wny at z=2, the first strongly lensed superluminous supernova / XX - Lens models of binary lens galaxies with five images of Supernova Winny: #supernova: https://www.tum.de/en/news-and-events/all-news/press-releases/details/measuring-the-expansion-of-the-universe-with-cosmic-fireworks - measuring the expansion of the universe with cosmic fireworks.
@cosmos4u@scicomm.xyz2026-03-20 21:38:49
The #ArtemisII stack arrived back at the pad today, with a launch on April 1st (Europe: April 2nd) still a possibility: https://www.nasa.gov/blogs/missions/2026/03/20/nasas-artemis-ii-rocket-arrives-at-launch-pad-39b/ and https://www.esa.int/ESA_Multimedia/Images/2026/03/Artemis_II_rolls_again and many more roll-out pictures in https://www.flickr.com/photos/nasahqphoto/albums/72177720332614865/
