Un estudio publicado en Nature Astronomy en el que ha participado el Instituto de Astrofísica de Canarias (IAC) detalla el descubrimiento de un sistema binario extremadamente raro compuesto de dos enanas blancas de alta masa. Estas estrellas están tan cerca entre sí que colisionarán, dando lugar a una supernova. Debido a su cercanía a la Tierra, esta explosión estelar se verá hasta diez veces más brillante que la Luna.
Más en https://lasendadeapolo.es/2025/05/03/una-supernova-a-150-anos-luz-descubierta-por-el-iac/ #ciencia #astrofisica #supernova

A salient comment from the chat:

"Some studies suggest it may be in the carbon-burning phase, which precedes a supernova. However, even in this phase, a supernova is not expected for several decades to centuries"

Always expect the unexpected.

No one has any idea exactly when it will go off, but it should be spectacular when it does.

As I said, if you want to watch a blob on a screen, have I found the stream for you!

This guy's going to monetize a supernova, isn't he?

https://www.youtube.com/watch?v=OwsmWyWWRoo

It has been doing this for months, but is expected to go supernova sometime in the near future, likely this year. It's a view from a Celestron at 1000x resolution.

Ignore his "prediction." If you're lucky, you'll be watching.

https://www.youtube.com/watch?v=OwsmWyWWRoo

Now it's back to orange/yellow.

It's over 600 light years away. We're watching this as Mitch McConnell was being born.

https://www.youtube.com/watch?v=OwsmWyWWRoo

Well, it changed from orange/yellow to red/orange.

When it goes off, be sure to remind the heathens that their gods are angry because of Republicans screwing with science funding.

https://www.youtube.com/watch?v=OwsmWyWWRoo

Beautiful emission #nebula NGC 6164 was created by a rare, hot, luminous O-type #star, some 40 times as massive as the Sun.

Seen at the center of the cosmic cloud, the star is a mere 3 to 4 million years old. In another three to four million years the massive star will end its life in a #supernova explosion.

#astronomy #astrophotography
https://apod.nasa.gov/apod/ap250424.html

https://www.europesays.com/2012695/ Bothell company creates innovative new space vehicle #JeffThornburg #MultiRole #nasa #PortalSpaceSystems #space #SpaceRace #SpaceSuperiority #SpaceVehicle #Supernova

We talked about Cassiopeia A (Cas A) during our #Astronomy episode on #cassiopeia here: https://starrytimepodcast.podbean.com/e/cassiopeia-cosmic-background/

And, gotta say, this 3D rendering does not disappoint!!!

#AstroDon #Space #Science #Chandra #Supernova #Astro #JWST #Webb #NASA

: https://chandra.harvard.edu/photo/2025/3dmodels/

Normal people: Let's count in base 10
Computer scientists: Let's count in base 2
Astronomers: Let's count in base 26!

#astrodon #astronomy #supernova

https://badastronomy.beehiiv.com/p/ban-447-wait-how-many-supernova-explode

Digital Emotion - Moving To The Top, Supernova (2021) – funny sci fi

https://dimalinkeng.blogspot.com/2025/04/digital-emotion-moving-to-top-supernova.html

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

https://scicomm.xyz/@cosmos4u/114282230745310485

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

#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

#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/

#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/

Keele University and Universidad de Alicante #astronomers believe a #supernova explosion close to #Earth could be to blame for both the Late Devonian and Ordovician #extinction events, which occurred 372 and 445 million years ago respectively.

https://www.sci.news/astronomy/nearby-supernova-explosions-mass-extinctions-13746.html