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#astrophysics

88 posts · Last used 3h

ESO @esoastronomy@mastodon.social
· 4h ago
Boosted by @trending@homestead.social
Lights in the sky ✨ The telescope gazing at the Milky Way in admiration is the Danish 1.54-meter telescope, hosted at La Silla in #Chile. And do not worry, the green glow we see in this image –too faint to be seen with the naked eye– is not a result of urban light pollution. This is a natural phenomenon known as airglow. What causes it? Find out: https://www.eso.org/public/images/potw2645a/ 📷 J. Rodrigues/ESO #astrodon #astronomy #astrophysics #space #science
Lights in the sky
eso.org

Lights in the sky

Lights in the sky

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ESO @esoastronomy@mastodon.social
· 2w ago
Boosted by @gvenema@fairmove.net
2000 tonnes of steel sliding on a few microns of oil! Our Extremely Large Telescope (ELT) was tilted for the first time in October 2026. To point anywhere in the southern sky the telescope needs to rotate on two different axes. A few months ago it on its vertical axis for the first time. Now, tilting on its horizontal axis is another step in the right direction. Read more: https://www.eso.org/public/videos/potw2643a/ 📹 ESO/Cimolai/Apical/G. Vecchia #astrodon #astronomy #astrophysics #space #science #engineering
Moving forward
eso.org

Moving forward

Moving forward

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ESO @esoastronomy@mastodon.social
· 3w ago
Boosted by @trending@homestead.social
This object is one of the three BlackGEM telescopes hosted at our La Silla Observatory. Its mission? To help detectors such as LIGO and Virgo to pinpoint powerful gravitational-wave events, like neutron star and black hole mergers, by detecting the visible afterglow that some of these events leave behind. Learn more: https://www.eso.org/public/images/potw2642a/ 📷 J. Rodrigues/ESO #astrodon #astronomy #astrophysics #space #science #astrophotography
Observing the unpredictable
eso.org

Observing the unpredictable

Observing the unpredictable

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ESO @esoastronomy@mastodon.social
· 4mo ago
Tunnel vision! Step inside the tunnels below our Paranal Observatory in #Chile. They connect the Unit Telescopes, which comprise the Very Large Telescope (VLT), to the control building where the VLT and its instruments are operated by observing teams. And no worries: despite the eerie, sci-fi atmosphere, no drooling, man-eating aliens are roaming there, just astronomers and engineers 😉 Read more: https://www.eso.org/public/images/potw2624a/ 📷 L. Sbordone/ESO #astrodon #astronomy #astrophysics #space #science
Tunnel vision
eso.org

Tunnel vision

Tunnel vision

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The Perpetually Curious! @theperpetuallycurious8@mastodon.social
· 11mo ago
🪐 From Glass Rain to Zombie Worlds In 1995, astronomers discovered the first exoplanet orbiting a Sun-like star. Today we know of 6,000+ worlds defying imagination. Some rain molten glass sideways. Others orbit backward. Infant planets spiral through cosmic nurseries while ancient worlds circle stellar corpses. ✍️ Explore the extraordinary census: https://TPC8.short.gy/BP7mexQG 🌌 When reality exceeds science fiction. #Exoplanets #Astronomy #Space #JWST #NASA #Astrophysics #Astrobiology #Cosmos #TPC8
tpc8.short.gy

Worlds Beyond Worlds: The Extraordinary Story of Exoplanets 🌌

Explore 6,000+ confirmed exoplanets: glass-rain hot Jupiters, pulsar planets, JWST atmospheric discoveries, and the search for Earth 2.0.

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oddquark 📡☄️🌌 @oddquark@social.vivaldi.net
· 1mo ago
🕳️ 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
A black hole jet is aimed at us … and it’s in our galaxy
earthsky.org

A black hole jet is aimed at us … and it’s in our galaxy

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ESO @esoastronomy@mastodon.social
· 1mo ago
Boosted by @trending@homestead.social
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
Dark clouds and a starry night sky
eso.org

Dark clouds and a starry night sky

Dark clouds and a starry night sky

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oddquark 📡☄️🌌 @oddquark@social.vivaldi.net
· 1mo ago
🕳️ 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
Space News: Milky Way
lakeconews.com

Space News: Milky Way

Astronomers have discovered the fastest known star in our galaxy, the Milky Way, orbiting the black hole at its centre.

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LionelB @lionelb@expressional.social
· 1mo ago
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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Project Gutenberg @gutenberg_org@mastodon.social
· 2mo ago
Boosted by @trending@homestead.social
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
spacedaily.com
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ESO @esoastronomy@mastodon.social
· 2mo ago
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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FediBoard Science @fediboard_science@flipboard.social
· 3mo ago
Finding seven quasars in 800,000 galaxies: the challenge of weighing the universe's hungriest black holes https://www.universetoday.com/articles/seven-needles-800000-haystacks A quasar is a supermassive black hole in the act of feeding, and it’s so bright that it drowns out the galaxy it sits in. That is a nuisance if you want to weigh the galaxy and weighing it is exactly… #science #blackholes #astrophysics
Seven Needles, 800,000 Haystacks
universetoday.com

Seven Needles, 800,000 Haystacks

A quasar is a supermassive black hole in the act of feeding, and it’s so bright that it drowns out the galaxy it sits in. That is a nuisance if you want to weigh the galaxy and weighing it is exactly what you need to do to understand how black holes and the host galaxies grew up together. There is a way round it however, catch a quasar whose galaxy happens to be bending the light of something further away, and the bending betrays the mass. The catch is that such alignments are vanishingly rare,

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ESO @esoastronomy@mastodon.social
· 3mo ago
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
The night shift begins
eso.org

The night shift begins

The night shift begins

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oddquark 📡☄️🌌 @oddquark@social.vivaldi.net
· 3mo ago
🕳️ oddquark // Black Hole Watch — 2026-08-09 6 BILLION solar masses measured not by a blazing quasar but by watching stars get gravitationally yanked around in the early universe 🤯 dynamical mass measurements on a monster this far back is absolutely wild 🔗 https://www.ecoticias.com/en/six-billion-suns-weigh-a-hidden-black-hole-in-the-young-universe-revealed-by-how-its-gravity-tugs-on-the-surrounding-stars-in-a-distant-galaxy/35459/ #BlackHole #Astrophysics #GravitationalWaves #EventHorizon
Six billion Suns weigh a hidden black hole in the young universe, revealed by how its gravity tugs on the surrounding stars in a distant galaxy
ecoticias.com

Six billion Suns weigh a hidden black hole in the young universe, revealed by how its gravity tugs on the surrounding stars in a distant galaxy

Plastic-digesting enzymes evolved in bacterial strains, offering hope for faster recycling and reducing landfill waste.

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oddquark 📡☄️🌌 @oddquark@social.vivaldi.net
· 3mo ago
🕳️ oddquark // Black Hole Watch — 2026-08-06 A SUPERMASSIVE black hole just casually drifting off-center after a galactic merger kick?! 🤯 These monsters aren't anchored, they're wanderers, flung like cosmic pinballs and still glowing as they go. Absolutely feral physics. 🔗 https://www.smithsonianmag.com/smart-news/in-a-first-astronomers-may-have-spotted-a-supermassive-black-hole-that-wandered-to-the-edge-of-its-galaxy-180989233/ #BlackHole #Astrophysics #GravitationalWaves #EventHorizon
In a First, Astronomers May Have Spotted a Supermassive Black Hole That Wandered to the Edge of Its Galaxy
smithsonianmag.com

In a First, Astronomers May Have Spotted a Supermassive Black Hole That Wandered to the Edge of Its Galaxy

These giant celestial objects have mostly been identified at the centers of galaxies, where they're known to reside. But a recently discovered one—found because of the light emitted while it snacked on a star—appears to be more than 30,000 light-years from its host galaxy's heart

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