Astronomers just found a pair of stars that WILL explode—and they're terrifyingly close. But don’t panic... yet. #Supernova #SpaceDiscovery #WhiteDwarfs
https://geekoo.news/a-supernova-in-waiting-the-star-duo-that-will-light-up-our-sky/
Mind-Blowing Scale: Betelgeuse Compared to Our Solar System! 
Imagine replacing our Sun with the colossal red supergiant star, Betelgeuse! Its size is absolutely staggering—it would extend beyond the orbit of Jupiter, swallowing Mercury, Venus, Earth, Mars, and a chunk of the asteroid belt! 
And the cosmic drama doesn't end there!
A super-Chandrasekhar mass type Ia #supernova progenitor at 49 pc set to detonate in 23 Gyr: https://www.nature.com/articles/s41550-025-02528-4 -> Warwick astronomers discover doomed pair of spiralling stars on our cosmic doorstep: https://warwick.ac.uk/newsandevents/pressreleases/warwick_astronomers_discover
A super-Chandrasekhar mass type Ia #supernova progenitor at 49 pc set to detonate in 23 Gyr: https://www.nature.com/articles/s41550-025-02528-4 -> Warwick astronomers discover doomed pair of spiralling stars on our cosmic doorstep: https://warwick.ac.uk/newsandevents/pressreleases/warwick_astronomers_discover
4 avril, Marseille débat pour la sortie de l’OTAN et se libérer des cages de l’impérialisme [ PRCF – FUIQP – Supernova]
https://www.initiative-communiste.fr/articles/luttes/4-avril-marseille-debat-pour-la-sortie-de-lotan-et-se-liberer-des-cages-de-limperialisme-prcf-fuiqp-supernova/
Explosion des budgets militaires, escalades guerrières dans le monde du Moyen Orient à la mer rouge, de la mer de Chine au Donbass… la paix mondiale est menacée, et les milliardaires pour financer leurs guerres présentent la note aux travailleurs qu’ils se préparent à renvoyer dans les tranchées… A Marseille, c’est la question de la […]
#Politique #2LutteDesClassesEtRenaissanceCommuniste #Articles #Debat #Frexit #Fuiqp #GuerreMondiale #Paix #Prcf13 #SortieDeLOtan #SortieDeLUe #Supernova
#PortalSpace Systems says $17.5 million in fresh funding will accelerate the development of its fast-maneuvering #Supernova space vehicle, which will rely on solar thermal propulsion. https://www.geekwire.com/2025/portal-space-systems-raises-17-5m-for-orbital-spacecraft-powered-by-solar-heating/ #Space
New header picture 
It shows the two supernova remnants Cassiopeia A (left, in X-rays) and Vela Jr. (right, at radio wavelengths). Both harbor a “central compact object”, a neutron star left behind together with the debris cloud after the supernova.
Researchers from the permanent independent @maxplanckgesellschaft research group “Continuous Gravitational Waves” at @mpi_grav in Hanover, Germany, have been searching for gravitational waves from these central compact objects using the volunteer distributed computing project @einsteinathome.
https://arxiv.org/abs/2503.09731
The fact that they did not find any gravitational waves indicates that the neutron stars can only be minimally deformed.
https://www.aei.mpg.de/1188233/digging-deeper-with-einstein-home?c=26149
Images: http://snrcat.physics.umanitoba.ca/SNRrecord.php?id=G111.7m02.1 and http://snrcat.physics.umanitoba.ca/SNRrecord.php?id=G266.2m01.2
Neues Header-Bild
Es zeigt die beiden Supernova-Überreste Cassiopeia A (links, im Röntgenbereich) und Vela Jr. (recht, im Radiobereich). Beide beherbegen ein „zentrales kompaktes Objekt“, einen Neutronenstern, der mit der Explosionswolke nach der Supernova zurückblieb.
Forschende der dauerhaften unabhängigen @maxplanckgesellschaft Forschungsgruppe „Kontinuierliche Gravitationswellen“ am @mpi_grav in Hannover haben mit dem verteilten Rechenprojekt @einsteinathome nach Gravitationswellen von diesen zentralen kompakten Objekten gesucht.
https://arxiv.org/abs/2503.09731
Dass sie keine Gravitationswellen gefunden haben, verrät, dass die Neutronensterne nur minimal verformt sein können.
https://www.aei.mpg.de/1188233/digging-deeper-with-einstein-home?c=26149
Bilder: http://snrcat.physics.umanitoba.ca/SNRrecord.php?id=G111.7m02.1 bzw. http://snrcat.physics.umanitoba.ca/SNRrecord.php?id=G266.2m01.2
Verdwijnen in het niets. Vergeet het, zegt dit vrolijke gedicht van Ruben van Gogh, uit 2001. #gedichtvandedag #gedicht #heelal #supernova
https://www.instagram.com/p/DH3-VDDA5IC/?igsh=MWprMWVpeDlqeXY5aQ==
Cette semaine sur Oxytude, l'Hebdoxytude 401, l'actu des nouvelles technologies et de l'accessibilité.
Super Nova, Spencer Wilton’s British Olympic Team Horse, Passed Away https://www.byteseu.com/875446/ #GreatBritain #PassedAway #SpencerWilton'sBritishOlympicTeamHorse #SuperNova #UnitedKingdom
Neutron stars: cosmic powerhouses!
Denser than imaginable, their gravity and magnetism redefine extremes. From billion-tonne teaspoons to pulsars, dive into their wonders. 
Watch the full video here: 
https://TPC8.short.gy/RMGSrs04
What Will the Betelgeuse Supernova Be Like - And Will It Hurt Us?
—@universetoday
｢ It will be visible during the day. It will be brighter than any planet. It will be almost as bright as the full moon. You'll be able to read a book by the light of the Betelgeuse supernova at midnight ｣
#Hubble Caught a #Cosmic Illusion – And a #Supernova Just in Time
https://scitechdaily.com/hubble-caught-a-cosmic-illusion-and-a-supernova-just-in-time/
Hobby update! 
Last week some clear nights; and with my second set I didn’t knew what to target and shoot. So kinda was hopping around and found this very very very faint target. Didn’t knew what it was; had to look it up.
Ultimately I had to do 600 second and 1200 second 
subs. Yeah. That’s 20 minutes for one shot. And that a challenge I didn’t tackle before.
But. Here she is: CTB-1 Supernova remnant in HOO (Garlic Nebula)
William Optics RedCat 61 WIFD
ZWO AM3, ZWO EAF, ZWO ASI 120MM mini, ASIAir Pro
69x 600" @ Gain 252 -10c
21x1200" @ Gain 252 -10c
20 Flats + darkflats
40 Darks (600/1200")
Dark Energy Survey ondersteunt theorie van evoluerende donkere energie
Het Lambda-CDM-model (ΛCDM) vormt al enige tijd de basis van de moderne kosmologie en beschrijft met succes grootschalige structuren in het heelal. Het stelt voor dat 95% van het heelal bestaat uit donkere m
https://www.kuuke.nl/dark-energy-survey-ondersteunt-theorie-van-evoluerende-donkere-energie/
Ce samedi, l'#ensemblesatellite dont je suis l'altiste jouera au #klarafestival à 18h20 ! C'est le concert officiel des lauréats du concours #supernova 2025 
Avis aux amateurices de découvertes et d'émotions fortes !
"Speak, your lips are free. Speak, it is you own tongue. Speak, your life is still yours" Faiz Ahmed Faiz
Avec @marcmncello et Lia Manchón Martínez
https://www.klarafestival.be/en/concert/22-03-2025/supernova-satellite
#DarkEnergy weakening? Must be because certain Death Eaters have sucked up all the darkness of the #Universe ...
serious #science though, coming from #Euclid mission and #supernova measurements:
https://www.theguardian.com/science/2025/mar/19/dark-energy-mysterious-cosmic-force-weakening-universe-expansion #cosmology
A census of OB stars within 1 kpc and the star formation and core collapse #supernova rates of the #MilkyWay: https://academic.oup.com/mnras/article/538/3/1367/8024142?login=false -> Violent supernovae 'triggered at least two Earth #extinctions': https://ras.ac.uk/news-and-press/research-highlights/violent-supernovae-triggered-least-two-earth-extinctions
Supernova schuld an zwei von fünf Massenaussterben? Nahe Sternexplosionen könnten Katastrophen im Ordovizium und Devon ausgelöst haben. #Supernova #Massenaussterben #Erdgeschichte #Sternexplosion
https://www.scinexx.de/news/kosmos/supernova-schuld-an-zwei-von-fuenf-massenaussterben/
