#astrophysics — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #astrophysics, aggregated by home.social.
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A "born-again" star is a dead star, typically on its way to becoming a white dwarf, that temporarily re-ignites due to a rare late thermal pulse and resumes active evolution.
#Astronomy #Astrophysics #StellarEvolution #sflorg
https://www.sflorg.com/2026/09/astr09162601.html -
Comet C/2019 Y4 ATLAS represents a significant case study in cometary fragmentation and volatile activity. Originally discovered by the Asteroid Terrestrial-impact Last Alert System, this celestial object displayed a dramatic increase in brightness followed by a rapid structural disintegration as it approached perihelion. Observations of such events provide astronomers with critical data regarding the internal composition of cometary nuclei and the evolutionary processes of Oort cloud objects entering the inner solar system. Analysis of these fragments enhances our understanding of the distribution of frozen gases and dust that characterize early solar system materials.
#space #astronomy #astrophysics
@[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] #space #science #nasa #astronomy -
@AnaVinuela
Hi, academic in #astrophysics here. Idk, it's a suggestion I was given a lot when I started, which I am almost consistently ignoring getting senior.
I guess the point is to give a structure and some expectation about where you want to go to non-experts in the audience (students etc).
For conferences where only experts are, I find it incredibly boring. The sweet spot is maybe a minimal 30second slide with the outline, in an informative way? -
https://www.europesays.com/ie/690709/ NASA’s Webb Reveals Dynamic Panorama of Star Formation #astrophysics #AstrophysicsDivision #BrownDwarfs #Éire #GoddardSpaceFlightCenter #IE #Ireland #JamesWebbSpaceTelescope(JWST) #Nebulae #ReflectionNebulae #Science #Science&Research #Space #stars #TheUniverse
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https://www.bytesde.com/2027778/ NASA aktiviert Romans Primärinstrument und testet Coronagraph – NASA Science #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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NASA, Partners Prepare EXCITE for Antarctic Flight ✨
#Ast #Astrophysics #Balloon #Exoplanet #ExoplanetAtmospheres #Infrared #Space #Star
▶️ 1 new picture from NASA (SVS) https://commons.wikimedia.org/wiki/File:NASA%2C_Partners_Prepare_EXCITE_for_Antarctic_Flight_%28SVS15098_-_Palestine_July10_KH_001%29.jpg
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🕳️ oddquark // Black Hole Watch — 2026-09-16
100x more powerful than we thought?! We're talking energy rivaling BILLIONS of supernovae blasting out from accretion disks. Black holes aren't just eating galaxies, they're reshaping them with sheer force 🌌⚡
🔗 https://www.sciencedaily.com/releases/2026/09/260914102429.htm
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https://www.bytesde.com/2027573/ Die USA haben gerade zugegeben, dass sie Waffen im Weltraum haben. Warum das eine große Sache ist #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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KSC-05pd2614
KENNEDY SPACE CENTER, FLA. - At their consoles in the Atlas V Spaceflight Operations Center on Cape Canaveral Air Force Station, members of the New Horizons team take part in a dress rehearsal for the launch scheduled in mid-January. New Horizons carries seven scientific instruments that will characterize the global geology and geomorphology of Pluto and its moon Charon, m...
More: https://images.nasa.gov/details/KSC-05pd2614
#pluto #newhorizons #astrodon #astronomy #astrophotography #astrophysics
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https://www.bytesde.com/2027408/ Der nächste Starship-Flug wird in die Umlaufbahn gehen und 26 Starlink-Satelliten aussetzen, was den ersten operativen Flug markiert. Weder Booster noch Schiff werden gefangen #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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Neptune - Partial Rings
This mosaic from NASA Galileo Probe is of an equatorial hotspot on Jupiter and shows the features of a hazy cloud layer tens of kilometers above Jupiter main visible cloud deck. http://photojournal.jpl.nasa.gov/catalog/PIA02200
More: https://images.nasa.gov/details/PIA02200
Credit: NASA/JPL#neptune #voyager #astrodon #astronomy #astrophotography #astrophysics
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https://www.bytesde.com/2027192/ Die NASA sagt, dass Bewegung bei Missionen zum Mars die Herzgesundheit erhalten kann #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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Welcome to a Comet, from Lander on Surface
The Philae lander of the European Space Agency Rosetta mission is safely on the surface of Comet 67P/Churyumov-Gerasimenko, as these first two images from the lander CIVA camera confirm. One of the lander three feet can be seen in the foreground.
More: https://images.nasa.gov/details/PIA18876
Credit: Copyright: Copyright: ESA/Rosetta/Philae/CIVA#comet #rosetta #astrodon #astronomy #astrophotography #astrophysics
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https://www.bytesde.com/2027028/ Die NASA schickte Ingenieure aus ihren Laboren. Sie sagen, es gefährde zukünftige Weltraummissionen #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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Astrophotography captures a remarkable alignment as the Moon descends behind a lava fountain during an eruption at Mount Etna. This visual juxtaposition highlights the scale of volcanic activity on Earth relative to our celestial neighbor. The intensity of the molten spray reaches hundreds of meters, illustrating the immense geothermal pressure within Italy’s most active stratovolcano while the lunar backdrop provides a distinct perspective on planetary synchronization and optical depth.
#space #astronomy #astrophysics
@[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] #space #science #nasa #astronomy -
Titania High-Resolution Color Composite
This high-resolution color composite of Titania was made from NASA Voyager 2 images taken Jan. 24, 1986, as the spacecraft neared its closest approach to Uranus. A large, trenchlike feature is seen near the terminator. http://photojournal.jpl.nasa.gov/catalog/PIA00036
More: https://images.nasa.gov/details/PIA00036
Credit: NASA/JPL#titania #voyager #astrodon #astronomy #astrophotography #astrophysics
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The (simulated) progressive ejection of magnetic fields from galaxies (via galactic winds and/or AGN feedback) into the cosmic web, in a large ENZO cosmological simulation run on LEONARDO at CINECA.
The red colors mark the baryon matter distribution while the green colors mark the magnetic field amplitude, averaged along the line of sight.
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The Soul Nebula, officially designated as Westerhout 5, serves as a profound example of a stellar nursery located approximately 6,500 light-years away in the constellation Cassiopeia. This vast emission nebula is characterized by towering clouds of gas and dust shaped by the intense stellar winds and ionizing radiation from embedded clusters of massive, young stars. Through narrow-band imaging, astronomers can isolate the specific emissions of hydrogen, sulfur, and oxygen, providing critical data on the chemical composition and thermal processes driving star formation within these cosmic structures. Examining such regions allows for a deeper understanding of the lifecycle of stars and the dynamic evolution of the interstellar medium.
#space #astronomy #astrophysics
@[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] #space #science #nasa #astronomy -
The provided image offers a specialized view of the Lagoon Nebula, also known as Messier 8, with its stellar inhabitants digitally removed to enhance the visibility of its internal structures. Located approximately 5,000 light-years away in the constellation Sagittarius, this immense interstellar cloud serves as a site of active star formation. By isolating the nebular gas and dust, astronomers can more clearly observe the intricate ridges, globules, and filaments sculpted by high-energy radiation and intense stellar winds. This perspective highlights the complexity of the interstellar medium and the delicate fluid dynamics involved in the birth of new stars.
#space #astronomy #astrophysics
@[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] #space #science #nasa #astronomy -
https://www.bytesde.com/2026816/ Erfolgreicher Start von EU Copernicus Sentinel-3C zur Überwachung unseres sich verändernden Planeten #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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Atmospheric Structure
This is a composite of several images taken in several colors by the New Horizons Multispectral Visual Imaging Camera, or MVIC.
More: https://images.nasa.gov/details/PIA10098
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute#jupiter #newhorizons #astrodon #astronomy #astrophotography #astrophysics
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A Military Official Says U.S. Has Put ‘Space Control Weapons’ in Orbit https://www.byteseu.com/2367136/ #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology
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https://www.bytesde.com/2026672/ Ein Militärbeamter sagt, die USA hätten „Weltraumkontrollwaffen“ in den Orbit gebracht #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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🕳️ oddquark // Black Hole Watch — 2026-09-15
JWST just found water vapor around a dying star spiraling toward Sgr A*! Molecules surviving mere light-years from a supermassive black hole's tidal chaos and radiation storm 🤯 the extreme environment chemistry here is wild
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https://www.bytesde.com/2026472/ Kraftstoffeinsparungen verdoppeln potenzielle Lebensdauer der römischen NASA-Mission – NASA Science #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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Fuel Savings Double Potential Lifetime for NASA’s Roman Mission – NASA Science https://www.byteseu.com/2366525/ #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology
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Rosetta Approach Tripych: Comet 67P
Comet 67P/Churyumov-Gerasimenko was imaged by ESA Rosetta spacecraft on July 20, 2014, from a distance of approximately 3,400 miles 5,500 kilometers. These three images were taken two hours apart.
More: https://images.nasa.gov/details/PIA18418
Credit: Copyright: ESA/Rosetta/MPS for OSIRIS Team/MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA#comet #rosetta #astrodon #astronomy #astrophotography #astrophysics
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Physicists zoom into the birth of cosmic rainstorms with new study at Large Hadron Collider https://www.byteseu.com/2366212/ #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology
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Applications for the 2027 NASA Hubble #Fellowship Program are
now being accepted. The deadline is October 28, 2026.The NASA Hubble Fellowship Program (NHFP) provides an opportunity for recent postdoctoral scientists to conduct independent research which contributes to any area of NASA #Astrophysics. The research will be carried out at United States host institutions chosen by each fellow...
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A new astrophysical model suggests that Venus lacks a moon not because one never formed or was destroyed by a catastrophic impact, but because the planet's exceptionally slow rotation and gravitational pull caused any potential moon to spiral inward and crash into the surface.
#Astrophysics #PlanetaryScience #OrbitalDynamics #sflorg
https://www.sflorg.com/2026/09/asph09142601.html -
U.S. has deployed space-control weapons in orbit, Air Force secretary says https://www.byteseu.com/2365900/ #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology
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Philae Lander View of Perihelion Cliff on Comet Surface
From the location where it came to rest after bounces, the Philae lander of the European Space Agency Rosetta mission captured this view of a cliff on the nucleus of comet 67P/Churyumov-Gerasimenko. The feature is called Perihelion Cliff.
More: https://images.nasa.gov/details/PIA19095
Credit: Copyright: ESA/Rosetta/Philae/CIVA#comet #rosetta #astrodon #astronomy #astrophotography #astrophysics
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https://www.bytesde.com/2026095/ Die USA haben Weltraumkontrollwaffen im Orbit stationiert, sagt der Luftwaffenminister #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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https://www.bytesde.com/2025938/ Das James Webb-Weltraumteleskop und Hubble entdecken 27 rätselhafte neue Objekte weit jenseits von Neptun #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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New research group by a dear former colleague now at the Institute of Astronomy, Bulgarian Academy of Sciences in Sofia: Cometary Life Cycle (CLIC) led by Rosita Kokotanekova ...
... is looking for two PhD students and two Postdocs to study the physical evolution of comet nuclei and their links to other small body populations (TNOs, Centaurs, irregular moons, and dormant comets). The project is also closely linked to Comet Interceptor and Rubin Observatory’s LSST.
More at https://clic.kokotanekova.com/positions
Rosita adds: "I know Bulgaria is not a traditional top destination for young researchers, but this is a well-funded opportunity for independent, curious candidates open to the adventure." Deadlines to apply to go on this adventure are September 30 for the PhD students, and October 31 for the Postdocs.
#Comet #CometaryScience #JobAd #FediHire #PhD #Jobs #PhDPositions #Postdoc #PostdocPositions #Astronomy #Astrophysics #Astrodon #Space #PlanetaryScience #Bulgaria
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New research group by a dear former colleague now at the Institute of Astronomy, Bulgarian Academy of Sciences in Sofia: Cometary Life Cycle (CLIC) led by Rosita Kokotanekova ...
... is looking for two PhD students and two Postdocs to study the physical evolution of comet nuclei and their links to other small body populations (TNOs, Centaurs, irregular moons, and dormant comets). The project is also closely linked to Comet Interceptor and Rubin Observatory’s LSST.
More at https://clic.kokotanekova.com/positions
Rosita adds: "I know Bulgaria is not a traditional top destination for young researchers, but this is a well-funded opportunity for independent, curious candidates open to the adventure." Deadlines to apply to go on this adventure are September 30 for the PhD students, and October 31 for the Postdocs.
#Comet #CometaryScience #JobAd #FediHire #PhD #Jobs #PhDPositions #Postdoc #PostdocPositions #Astronomy #Astrophysics #Astrodon #Space #PlanetaryScience #Bulgaria
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New research group by a dear former colleague now at the Institute of Astronomy, Bulgarian Academy of Sciences in Sofia: Cometary Life Cycle (CLIC) led by Rosita Kokotanekova ...
... is looking for two PhD students and two Postdocs to study the physical evolution of comet nuclei and their links to other small body populations (TNOs, Centaurs, irregular moons, and dormant comets). The project is also closely linked to Comet Interceptor and Rubin Observatory’s LSST.
More at https://clic.kokotanekova.com/positions
Rosita adds: "I know Bulgaria is not a traditional top destination for young researchers, but this is a well-funded opportunity for independent, curious candidates open to the adventure." Deadlines to apply to go on this adventure are September 30 for the PhD students, and October 31 for the Postdocs.
#Comet #CometaryScience #JobAd #FediHire #PhD #Jobs #PhDPositions #Postdoc #PostdocPositions #Astronomy #Astrophysics #Astrodon #Space #PlanetaryScience #Bulgaria
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New research group by a dear former colleague now at the Institute of Astronomy, Bulgarian Academy of Sciences in Sofia: Cometary Life Cycle (CLIC) led by Rosita Kokotanekova ...
... is looking for two PhD students and two Postdocs to study the physical evolution of comet nuclei and their links to other small body populations (TNOs, Centaurs, irregular moons, and dormant comets). The project is also closely linked to Comet Interceptor and Rubin Observatory’s LSST.
More at https://clic.kokotanekova.com/positions
Rosita adds: "I know Bulgaria is not a traditional top destination for young researchers, but this is a well-funded opportunity for independent, curious candidates open to the adventure." Deadlines to apply to go on this adventure are September 30 for the PhD students, and October 31 for the Postdocs.
#Comet #CometaryScience #JobAd #FediHire #PhD #Jobs #PhDPositions #Postdoc #PostdocPositions #Astronomy #Astrophysics #Astrodon #Space #PlanetaryScience #Bulgaria
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New research group by a dear former colleague now at the Institute of Astronomy, Bulgarian Academy of Sciences in Sofia: Cometary Life Cycle (CLIC) led by Rosita Kokotanekova ...
... is looking for two PhD students and two Postdocs to study the physical evolution of comet nuclei and their links to other small body populations (TNOs, Centaurs, irregular moons, and dormant comets). The project is also closely linked to Comet Interceptor and Rubin Observatory’s LSST.
More at https://clic.kokotanekova.com/positions
Rosita adds: "I know Bulgaria is not a traditional top destination for young researchers, but this is a well-funded opportunity for independent, curious candidates open to the adventure." Deadlines to apply to go on this adventure are September 30 for the PhD students, and October 31 for the Postdocs.
#Comet #CometaryScience #JobAd #FediHire #PhD #Jobs #PhDPositions #Postdoc #PostdocPositions #Astronomy #Astrophysics #Astrodon #Space #PlanetaryScience #Bulgaria
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James Webb Space Telescope and Hubble discover 27 puzzling new objects far beyond Neptune https://www.byteseu.com/2365248/ #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology
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KSC-06pd0084
KENNEDY SPACE CENTER, FLA. — Into a blue, cloud-scattered sky, NASA’s New Horizons spacecraft lifts off on time at 2 p.m. EST aboard an Atlas V rocket from Complex 41 on Cape Canaveral Air Force Station in Florida. This was the third launch attempt in as many days after scrubs due to weather concerns. The compact, 1,050-pound piano-sized probe will get a boost from a k...
More: https://images.nasa.gov/details/KSC-06pd0084
#pluto #newhorizons #astrodon #astronomy #astrophotography #astrophysics
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The annual Perseid meteor shower often faces significant celestial interference when coinciding with a full moon. In August 2022, the Sturgeon Moon created a bright lunar background that reduced the visibility of fainter meteors by decreasing the visual contrast of the night sky. Despite this natural light pollution, the most luminous Perseids remained visible to observers and cameras, demonstrating the intensity of debris originating from Comet Swift-Tuttle as it intersects Earths orbital path. This intersection highlights the complex relationship between lunar cycles and observational astronomy.
#space #astronomy #astrophysics
@[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] #space #science #nasa #astronomy -
Japan’s Hayabusa2 achieves first-ever laser ranging experiment with an asteroid https://www.byteseu.com/2364939/ #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology
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An atlas of periodic solutions to the three-body problem
https://www.threebodyorbits.com/
Comments: https://news.ycombinator.com/item?id=49670852
#HackerNews #threebodyproblem #periodicorbits #celestialmechanics #astrophysics #spaceexploration
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Charon Surprising Youthful and Varied Terrain
Remarkable new details of Pluto's largest moon Charon are revealed in this image from New Horizons' Long Range Reconnaissance Imager (LORRI), taken late on July 13, 2015 from a distance of 289,000 miles (466,000 kilometers). A swath of cliffs a...
More: https://images.nasa.gov/details/PIA19709
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute#charon #newhorizons #astrodon #astronomy #astrophotography #astrophysics
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James Webb Space Telescope discovers the rings of tiny solar system body Chariklo are changing https://www.byteseu.com/2364631/ #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology
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https://www.bytesde.com/2025592/ Mein Acrylgemälde des Sternbildes Orion, sieht es aus wie das echte Sternbild? #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration #SpaceTechnology #Weltraum #Weltraumtechnik #Weltraumtechnologie #Weltraumtechnologien
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A starry night, but in another galaxy ✨
Fly over the Magellanic Clouds, two galaxies orbiting the Milky Way, and discover a new stellar landscape — completely different from the one we see in our sky here on Earth.
1/2
📹 ESO/M. R. Cioni et al., VMC Survey, P. Horálek, Zdeněk Bardon, N. Risinger
🎵 Mylonite – Composition 129