#astrophysics

82 posts · Last used 9d

🕳️ oddquark // Black Hole Watch — 2026-09-29 WAIT. A microblazar, a stellar-mass black hole jet pointed almost directly at Earth, INSIDE our own galaxy?! Relativistic beaming from a nearby monster instead of some far-off AGN—this is like getting a cosmic laser pointer aimed right at us 🔭⚡ 🔗 https://earthsky.org/space/black-hole-jet-aimed-at-us-galaxy-microblazar/ #BlackHole #Astrophysics #GravitationalWaves #EventHorizon
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The gleaming Trifid and Lagoon nebulae can be seen between our New Technology Telescope (left) and the ESO 3.6-meter telescope (right) at La Silla. Their red colour comes from hydrogen atoms ionised by young stars in these clouds. The Trifid nebula also shows a blue tint caused by dust reflecting the light of some of these stars. Discover more: https://www.eso.org/public/images/potw2639a/ 📷 J. Rodrigues/ESO #astrodon #astronomy #astrophysics #astrophotography #space #science
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🕳️ oddquark // Black Hole Watch — 2026-09-27 A star whipping around Sgr A* so close it actually FEELS the black hole's frame-dragging spin?! That's literally Lense-Thirring precession playing out live in our galactic backyard. General relativity showing off again 🌀🕳️ 🔗 https://www.lakeconews.com/en/85424-space-news-milky-ways-fastest-star-orbits-our-supermassive-black-hole-so-closely-it-feels-its-spin #BlackHole #Astrophysics #GravitationalWaves #EventHorizon
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Quantum entanglement is mysterious. There is no communication, no collusion across vast distances. States are also not pre-programmed, like Christmas lights. The paradox disappears though if you accept that rather than being separate things, mysteriously doing a co-ordinated dance, there is in fact just one thing, being itself. It may be a bit like a lighthouse seen in a mirror. Seen in one way, it is here. Seen in another way, it is a thousand light years away. Its spin may appear flipped but there is no 'entanglement' and no need of a theory of entanglement. Am I being daft and simplistic? #quantumentanglement #quantumphysics #astrophysics
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In 1925, 24-year-old graduate student Cecilia Payne calculated that the Sun and other stars were composed overwhelmingly of hydrogen and helium—a result so contrary to accepted astronomy that senior astronomer Henry Norris Russell called it “clearly impossible,”.... By Deep Field · Edited by Lachlan Brown https://spacedaily.com/t-cecilia-payne-russell-hydrogen-helium-companion/ Stellar atmospheres at PG: https://www.gutenberg.org/ebooks/73996 #books #astrophysics #Womeninstem
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A bubbling Betelgeuse ⭐️ 🫧 Taken with ALMA, this is one of the most detailed views yet of the surface of the iconic star Betelgeuse. The star's surface is uneven and lumpy, with peaks and troughs originating from giant bubbles of hot gas rising from deep within the star to its surface. 1/2 📷 ALMA(ESO/NAOJ/NRAO)/W. Dent et al. #astrodon #astronomy #astrophysics #space #science
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The night shift begins. At our Paranal Observatory, sunset does not mark the end of the day: it signals the beginning of a night under the stars. Taken after dinner, before heading to the telescopes for a night of observing, this image shows the last rays of sunlight slicing through one of the corridors at the Residencia — a home away from home for astronomers and other staff members. https://www.eso.org/public/images/potw2632a/ 📷 L. Sbordone/ESO #astrodon #astronomy #astrophysics #space #science #architecture
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Astrophysical jets are associated with many types of high-energy astronomical sources, such as black holes, neutron stars and pulsars. Their causes are not yet fully understood, but they are believed to arise from dynamic interactions within accretion disks. One explanation is that as an accretion disk spins, it generates a rotating, tangled magnetic field which concentrates material from the disk into the jets and then https://en.wikipedia.org/wiki/Astrophysical_jet #void #astrophysics #caturday #caturdayeveryday
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