#supernovaremnant

[johnlyngfr]

The Jellyfish Nebula

IC 443 is commonly called “The Jellyfish Nebula” due to its appearance. It is a “Supernova Remnant”, that is, the remains of a star that violently exploded 5,000 to 30,000 years ago. The spherical shape suggests that the explosion is still in progress, originating from the centre.

It resides about 5,000 light-years distance and is approximately 70 light-years in diameter. It is far too faint to be visible unaided, but, if it were, it would appear larger than the full moon.

The spherical blast wave from the explosion is thrusting (above) into the residing cloud of dust and gas in this galactic region. Below it, the blast wave is being absorbed by another smaller galactic cloud.

The Jellyfish Nebula is a favorite target for both amateurs and professionals. However, its history is still perplexing, debated.

I photographed the Jellyfish Nebula from my garden in Strasbourg France in mid-February 2024. 45 x 300 sec.

[alexanderrogge]

Webb’s Infrared Eye Reveals the Heart of the Milky Way

Evan Gough - Webb’s Infrared Eye Reveals the Heart of the Milky Way:

[wonders-of-the-cosmos]

Crab Nebula - a supernova remnant in the constellation Taurus.

Image Credit: NASA, ESA, J. Hester, A. Loll (ASU)

[mitchbattros]

Mapping Dark Energy - Accelerating the Expansion of the Universe

On 21 June 2019 the Spektrum-Röntgen-Gamma (Spektr-RG / SRG) spacecraft will be launched from the Kazakh steppe, marking the start of an exciting journey. SRG will be carrying the German Extended ROentgen Survey with an Imaging Telescope Array (eROSITA) X-ray telescope and its Russian ART-XC partner instrument. A Proton rocket will carry the spacecraft from the Baikonur Cosmodrome towards its destination - the second Lagrange point of the Sun-Earth system, L2, which is 1.5 million kilometers from Earth.

In orbit around this equilibrium point, eROSITA will embark upon the largest-ever survey of the hot universe. The space telescope will use its seven X-ray detectors to observe the entire sky and search for and map hot sources such as galaxy clusters, active black holes, supernova remnants, X-ray binaries and neutron stars. Walther Pelzer, executive board member for the Space Administration at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR), says, "eROSITA's X-ray 'eyes' are the best that have ever been launched as part of a space telescope. Their unique combination of light-collecting area, field-of-view and resolution makes them approximately 20 times more sensitive than the ROSAT telescope that flew to space in the 1990s. ROSAT also incorporated advanced technology that was 'made in Germany'. With its enhanced capabilities, eROSITA will help researchers gain a better understanding of the structure and development of the universe, and also contribute towards investigations into the mystery of dark energy." The universe has been expanding continuously since the Big Bang. Until the 1990s, it was thought that this cosmic expansion would slow down and eventually come to a halt. Then, the astrophysicists Saul Perlmutter, Adam Riess and Brian Schmidt observed stellar explosions that were visible from a great distance and always emitted the same amount of light. They measured their distances and could hardly believe their findings.

"The Type 1a supernovae observed exhibited lower brightness levels than expected. It was clear that the universe was not slowing down as it expanded - quite the opposite, in fact. It is gathering speed and its components are being driven further and further apart at an ever-increasing rate," explains Thomas Mernik, eROSITA Project Manager at the DLR Space Administration. With this discovery, the three researchers turned science upside and were awarded the Nobel Prize in Physics in 2011. Yet Perlmutter, Riess and Schmidt have left us with one crucial question: "What is the 'cosmic fuel' that powers the expansion of the universe? Since no one has yet been able to answer this question, and the ingredients of this catalyst are unknown, it is simply referred to as dark energy. eROSITA will now attempt to track down the cause of this acceleration," explains Mernik. Galaxy clusters - a key to dark energy Very little is known about the universe. The ingredients that make up 4 percent of its energy density – 'normal' material such as protons and neutrons - is only a very small part of the 'universe recipe'. What the other 96 percent is composed of remains a mystery. Today it is believed that 26 percent is dark matter. However, the largest share, estimated at 70 percent, is comprised of dark energy. To track this down, scientists must observe something unimaginably large and extremely hot: "Galaxy clusters are composed of up to several thousand galaxies that move at different velocities within a common gravitational field. Inside, these strange structures are permeated by a thin, extremely hot gas that can be observed through its X-ray emissions. This is where eROSITA's X-ray 'eyes' come into play. They allow us to observe galaxy clusters and see how they move in the universe, and above all, how fast they are travelling. We hope that this motion will tell us more about dark energy," explains Thomas Mernik. Scientists are not just interested in the movement patterns of galaxy clusters. They also want to count and map these structures. Up to 10,000 such clusters should be 'captured' by eROSITA's X-ray 'eyes' – more than have ever been observed before. In addition, other hot phenomena such as active galactic nuclei, supernova remnants, X-ray binaries and neutron stars will be observed and identified. eROSITA will scan the entire sky every six months for this purpose, and create a deep and detailed X-ray map of the universe over four years. It will thus produce the largest-ever cosmic catalog of hot objects and thus improve the scientific understanding of the structure and development of the universe. The German telescope consists of two core components - its optics and the associated detectors. The former consists of seven mirror modules aligned in parallel. Each module has a diameter of 36 centimeters and consists of 54 nested mirror shells, whose surface is composed of a para-boloid and a hyper-boloid (Wolter-I optics). "The mirror modules collect high-energy photons and focus them onto the CCD X-ray cameras, which were specially developed for eROSITA at our semiconductor laboratory in Garching. These form the second core component of eROSITA and are located at the focus of each of the mirror systems. The highly sensitive cameras are the best of their kind and, together with the mirror modules, form an X-ray telescope featuring an unrivaled combination of light-collecting area and field-of-view," explains Peter Predehl, eROSITA principal investigator at MPE. Read the full article

[ao3feed-goodomens]

A Brand New Angle (Highly Commendable)

read it on the AO3 at https://ift.tt/2VvRU6P

by SupernovaRemnants

.

Crowley’s eyebrows rise in fascination one by one, as Aziraphale bends his knees to gather papers from a small table, his rear posing perfectly for Crowley to admire the swelling of his thighs, the soft roundness of his buttocks.

Satan, his Angel knows he loves his behind. Why does he ... ?

Oh.

.

Words: 2252, Chapters: 1/1, Language: English

Fandoms: Good Omens - Neil Gaiman & Terry Pratchett, Good Omens (TV)

Rating: Explicit

Warnings: No Archive Warnings Apply

Categories: M/M

Characters: Crowley (Good Omens), Aziraphale (Good Omens), The Bookshop (Good Omens)

Relationships: Aziraphale/Crowley (Good Omens)

Additional Tags: Established Relationship, Fluff, Fluff and Smut, Smut, romantic smut, Romantic Romping, Plot What Plot, Service Top Crowley (Good Omens), Praise Kink, Crowley Has a Praise Kink (Good Omens), Tenderness, Love, Emotional Sex, Porn with Feelings, Ineffable Husbands (Good Omens), The Bookshop Does Like Its Owner To Have His Fun, Crowley Sucks At Resisting A Temptation, No beta we fall like Crowley

read it on the AO3 at https://ift.tt/2VvRU6P

[nonbinary-nature-lover-jeri]

Cassiopeia A Supernova Remnant By Chandra X-ray Observatory From NASA Chandra X-ray Observatory (CXO) reveals the elementary nature of Cassiopeia A - Photo supplied By NASA Cassiopeia A (Cas A) is a supernova remnant (SNR) in the constellation Cassiopeia and the brightest extrasolar radio source in the sky at frequencies above 1 GHz. The supernova occurred approximately 11,000 light-years (3.4 kpc) away within the Milky Way. The expanding cloud of material left over from the supernova now appears approximately 10 light-years (3 pc) across from Earth's perspective. In wavelengths of visible light, it has been seen with amateur telescopes down to 234mm (9.25 in) with filters. #CassiopeiaA #ChandraXRayObservatory #SupernovaRemnant #Supernova #NASA

[antariksha11]

Williamina Fleming s Triangular Wisp via #NASA #APOD Astronomy Picture Of the Day https://buff.ly/2hZqfpZ⠀ ⠀ Chaotic in appearance, these tangled filaments of shocked, glowing gas are spread across planet Earth's #sky toward the #constellation of #Cygnus as part of the #VeilNebula. The #Veil #Nebula itself is a large #supernovaremnant, an expanding cloud born of the death explosion of a massive #star. #Light from the original #supernova explosion likely reached Earth over 5,000 years ago. Blasted out in the cataclysmic event, the #interstellar shock waves plow through space sweeping up and exciting interstellar material. The glowing filaments are really more like long ripples in a sheet seen almost edge on, remarkably well separated into the glow of ionized #hydrogen atoms shown in red and oxygen in blue hues. Also known as the Cygnus Loop, the Veil Nebula now spans nearly 3 degrees or about 6 times the diameter of the full #Moon. While that translates to over 70 light-years at its estimated distance of 1,500 light-years, this field of view spans less than one third that distance. Often identified as Pickering's Triangle for a director of Harvard College #Observatory, the the complex of filaments is cataloged as #NGC 6979. It is also known for its discoverer, #astronomer Williamina Fleming, as Fleming's Triangular Wisp.

[seiza-friedrich-blog]

Recent #contemporaryart #british #fineartist #oilpainting of the Crab Nebula, as captured by the #hst, will be amazing to see what the James Webb Space Telescope captures! #jwstart #astronomy #crabnebula #hubblespacetelescope #fineart #astrophysics #hubble #supernovaremnant #painting #whydontmorepeopleknowthattheatomswearemadeofwereforgedinthebelliesofstars #thissupernovaexplosionwasobservedbychineseastronomersintheyear1054 #thelonghashtagsarehappening #facts #emergingartist #art #contemporaryart #seizafriedrich

[johnlyngfr]

The Veil Nebula is a large area of superheated gas and dust visually located in the constellation of Cygnus, the Swan. It is 2,400 light years distance, which is considered nearby, on a galactic scale. All together, it looks like pieces of torn lace. This fragment is called: the Eastern Veil.

If your intuition suggests that it is the remnants of a very violent stellar event, then you are correct. About 15,000 years ago, a star 20 times the size of our sun violently exploded, leaving this interstellar debris. Hence, it is classified as a “Supernova Remnant”.

The French have a beautiful name for the Veil Nebula. They call it: “les dentelles du Cygne”, “The lace of the Swan”.

I photographed the Eastern Veil from my garden in Strasbourg France on two warm nights in early September 2023. This is a composite of 75 photos, where each was a 3 minute exposure.

[thehillcastle]

“Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.” ~ Carl Sagan ❤️🌲✨ #spaceart #acrylicpainting #arttherapy #space #red #thecolorred #thecolourred #supernova #thefinalfrontier #ukartist #nebula #celestial #celestialribbon #treehugger #artist #art #painting #theartlife #lightanddark #stars #healing #becoming #bethebestyou #outerspace #spacepainting #sn1006 #supernova #supernovaremnant — view on Instagram http://bit.ly/2I3UID1

[rjbailey]

Kepler's Supernova Remnant: Debris from Stellar Explosion Not Slowed After 400 Years by NASA's Marshall Space Flight Center Via Flickr: Astronomers have used NASA's Chandra X-ray Observatory to record material blasting away from the site of an exploded star at speeds faster than 20 million miles per hour. This is about 25,000 times faster than the speed of sound on Earth. The Kepler supernova remnant is the debris from a detonated star that is located about 20,000 light years away from Earth in our Milky Way galaxy. In 1604 early astronomers, including Johannes Kepler who became the object's namesake, saw the supernova explosion that destroyed the star. We now know that Kepler's supernova remnant is the aftermath of a so-called Type Ia supernova, where a small dense star, known as a white dwarf, exceeds a critical mass limit after interacting with a companion star and undergoes a thermonuclear explosion that shatters the white dwarf and launches its remains outward. The latest study tracked the speed of 15 small "knots" of debris in the Kepler supernova remnant, all glowing in X-rays. The fastest knot was measured to have a speed of 23 million miles per hour, the highest speed ever detected of supernova remnant debris in X-rays. The average speed of the knots is about 10 million miles per hour, and the blast wave is expanding at about 15 million miles per hour. These results independently confirm the 2017 discovery of knots travelling at speeds more than 20 million miles per hour in the Kepler supernova remnant. Image credit: NASA/CXC/Univ of Texas at Arlington/M. Millard et al. #NASA #MarshallSpaceFlightCenter #MSFC #Marshall #chandraxrayobservatory #ChandraXRay #cxo #chandra #astronomy #space #astrophysics #supernova #supernovaremnant #nasamarshallspaceflightcenter #solarsystemandbeyond Read more More about the Chandra X-ray Observatory NASA Media Usage Guidelines

[ao3feed-ineffablehusbandz]

A Brand New Angle (Highly Commendable)

by SupernovaRemnants

.

Crowley’s eyebrows rise in fascination one by one, as Aziraphale bends his knees to gather papers from a small table, his rear posing perfectly for Crowley to admire the swelling of his thighs, the soft roundness of his buttocks.

Satan, his Angel knows he loves his behind. Why does he ... ?

Oh.

.

Words: 2252, Chapters: 1/1, Language: English

Fandoms: Good Omens - Neil Gaiman & Terry Pratchett, Good Omens (TV)

Rating: Explicit

Warnings: No Archive Warnings Apply

Categories: M/M

Characters: Crowley (Good Omens), Aziraphale (Good Omens), The Bookshop (Good Omens)

Relationships: Aziraphale/Crowley (Good Omens)

Additional Tags: Established Relationship, Fluff, Fluff and Smut, Smut, romantic smut, Romantic Romping, Plot What Plot, Service Top Crowley (Good Omens), Praise Kink, Crowley Has a Praise Kink (Good Omens), Tenderness, Love, Emotional Sex, Porn with Feelings, Ineffable Husbands (Good Omens), The Bookshop Does Like Its Owner To Have His Fun, Crowley Sucks At Resisting A Temptation, No beta we fall like Crowley

source http://archiveofourown.org/works/22935877

[ao3feed-crowley]

A Brand New Angle (Highly Commendable)

read it on the AO3 at https://ift.tt/2VvRU6P

by SupernovaRemnants

.

Crowley’s eyebrows rise in fascination one by one, as Aziraphale bends his knees to gather papers from a small table, his rear posing perfectly for Crowley to admire the swelling of his thighs, the soft roundness of his buttocks.

Satan, his Angel knows he loves his behind. Why does he ... ?

Oh.

.

Words: 2252, Chapters: 1/1, Language: English

Fandoms: Good Omens - Neil Gaiman & Terry Pratchett, Good Omens (TV)

Rating: Explicit

Warnings: No Archive Warnings Apply

Categories: M/M

Characters: Crowley (Good Omens), Aziraphale (Good Omens), The Bookshop (Good Omens)

Relationships: Aziraphale/Crowley (Good Omens)

Additional Tags: Established Relationship, Fluff, Fluff and Smut, Smut, romantic smut, Romantic Romping, Plot What Plot, Service Top Crowley (Good Omens), Praise Kink, Crowley Has a Praise Kink (Good Omens), Tenderness, Love, Emotional Sex, Porn with Feelings, Ineffable Husbands (Good Omens), The Bookshop Does Like Its Owner To Have His Fun, Crowley Sucks At Resisting A Temptation, No beta we fall like Crowley

read it on the AO3 at https://ift.tt/2VvRU6P

[royalvoxpost]

#Space #SupernovaRemnant : NASA launches X-ray #telescope on sounding rocket to study star wreckage - https://t.co/3r2gEf8bjS https://t.co/xKsj2stpfL

#Space #SupernovaRemnant : NASA launches X-ray #telescope on sounding rocket to study star wreckage - https://t.co/3r2gEf8bjS pic.twitter.com/xKsj2stpfL

— The Royal Vox Post (@RoyalVoxPost) July 23, 2018

via Twitter https://twitter.com/RoyalVoxPost July 23, 2018 at 07:00PM

[jamesmichaelmclester]

Pre Sale Tickets.$20 each SuperNova Remnant Saigon Kick Friday June 3 Www.reverbnation.com/supernovaremnant (at Bedford, Texas)