This cosmic butterfly is IRAS 23077+6707, the largest planet-forming disc seen around a young star yet!  Hubble has revealed it to be an unusually chaotic specimen, with wisps of material flying far beyond the disc 👉 https://esahubble.org/images/opo2606/ 🔭

🎄 Are your holiday decorations ready? Euclid has a cosmic garland to add: NGC 646. The large barred spiral galaxy appears close to a smaller galaxy to the left, but they’re actually about 45 million light-years apart 👉 https://www.esa.int/ESA_Multimedia/Images/2025/12/Euclid_s_galaxy_garland 🔭

Are you a bachelor or master student anywhere in the world, and would like to come to us to work full-time on a supervised research project? Applications for the 2026 MPIA Summer Internship are open now!

First infrared map available from NASA's SPHEREx Satellite www.jpl.nasa.gov/news/nasas-s... 🔭

Christmastime at Jodrell Bank! 🎄 The Lovell Telescope in all its glory 🔭❄️

Merriam-Webster’s human editors have chosen ‘slop’ as the 2025 Word of the Year.

The number of active satellites in orbit has now passed the 14000 mark according to my estimates:

NASA has announced when the longest total solar eclipse of the century will occur—and you won’t have to wait long. Here’s what you should know.

Our XMM-Newton has observed comet 3I/ATLAS in X-ray light! When gas molecules streaming from a comet collide with the solar wind they produce X-rays, seen here as the red glow of 3I/ATLAS 👉 www.esa.int/ESA_Multimed... Blue marks empty space with little X-rays. The black line is a detector gap 🔭 🧪

Astronomer Annie Jump Cannon was born #OTD in 1863. She was a pioneer of stellar classification and co-creator of the Harvard Classification Scheme. Over her lifetime she *manually* classified around 350,000 stars. (1/n) 🧪 🔭 👩‍🔬 ⚛️ Image: Harvard University, Radcliffe Archives

Today I learned that NASA has a collection of free ebooks that can be downloaded as pdfs or ebub format. The science books even include a children’s section with fun activites and coloring books! science.nasa.gov/multimedia/s...

NASA has completed the construction of #NASARoman! Last month, technicians joined the inner and outer portions of the observatory in Maryland. After final testing, Roman will move to the launch site at the Kennedy Space Center for launch preparations in summer 2026: https://go.nasa.gov/48EqnE8 🔭 🧪

By 2040, ~40% of the images from Hubble Space Telescope, and more than 96% from new and future space telescopes like SPHEREx, ARRAKIHS, and Xuntian will be contaminated by internet satellite constellations. Read our new NASA article in Nature: nature.com/articles/s4158…

an insider essay on dark skies & reconnecting with a sense of cosmic wonder: www.nytimes.com/2025/12/02/i...

#OTD in 1967, Jocelyn Bell discovered pulsars & changed our view of the universe. 𝘉𝘶𝘵... The #Nobel Prize in #Physics for their discovery went to to her thesis supervisor Antony Hewish & to astronomer Martin Ryle. theconversation.com/fifty-years-...#OTD#Nobel#Physics#WomenInSTEM #astrophysics #MatildaEffect

DYK? 16 years' worth of pictures of the week are available on our Hubble website, a testament to the incredible treasures that this NASA/ESA telescope has uncovered for us all. Enjoy them here 👉 https://esahubble.org/images/potw/ 🔭

Jocelyn Bell Burnell transformed astronomy #OTD in 1967 when she made the first observation of a pulsar. She and advisor Antony Hewish initially dubbed the object LGM-1 (“Little Green Men”) for its regular signal, but soon identified it as a rotating, magnetized neutron star. (1/n) 🧪 🔭 👩‍🔬 ⚛️

In memory of my best performing tweet, I present to you turkey fight club 🦃 ⚔️

INTERN ALERT! 🚨 Join the NASA team and gain valuable on-the-job experience, build your resume, and strengthen your career readiness. 2026 Internship Application Deadlines: Summer 2026: February 27, 2026, 11:59 p.m. ET Fall 2026: May 22, 2026, 11:59 p.m. ET

have you ever been somewhere so dark you could step outside & immediately spot the Milky Way? i traveled to the Upper Peninsula to learn about efforts to balance industrialization & economic growth with the preservation of starry skies: www.nytimes.com/2025/11/24/s...

Fighting for ‘The Right to Night’ Under Starry, Rural Skies www.nytimes.com/2025/11/24/s... 🔭👩‍🔬

We are hiring a new Assistant Professor in Astrophysics at Trinity College Dublin!! ☘ Job ad here: aas.org/jobregister/... Deadline: Jan 02 2026 Please share widely! 🪐🔭

The Green Bank Observatory invites the scientific community to submit Special Call proposals for filler-time observations on the Green Bank Telescope (GBT) during the 25B and 26A semesters. Submission Deadline: Friday, November 28, 2025, at 22:00 UTC #Astronomy #RadioAstronomy #GreenBankTelescope

[astronomers clamoring] is a regular occurrence at the VLA, even when we're not on tv. #Pluribus #VeryLargeArray #Astronomy

Students, apply for a CERN summer studentship. Greatest experience ever! Deadline 26 January 2026. careers.cern/programmes/s... (It's not just for physicists. Check it out.)

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I’ve seen this shared several times with the header and footer not visible, so you can’t see the artists’s name. Credit: Leo the Alien — alienyrox on redbubble and other platforms.

Aurora Forecast Update for 2025-11-12T01:30:26Z ALERT: Geomagnetic K-index of 8, 9- Threshold Reached: 2025 Nov 12 0121 UTC Synoptic Period: 0000-0300 UTC Active Warning: Yes NOAA Scale: G4 - Severe Additional Details Here.

Key antenna in NASA’s Deep Space Network damaged One of the largest antennas in NASA’s Deep Space Network was damaged in September and may be out of service for an extended period, further straining the system.

😎 This is cool 👇 Explore 25 years on the International Space Station. This multimedia project replays every day of the past 25 years on board and consists entirely of historical mission material. By @benfeist.bsky.social and David Charney. issinrealtime.org

Did you know? In 2025, the U.S. quarter features Vera Rubin, honoring her landmark discovery of the existence of dark matter — a tribute that perfectly coincides with the first light of the Rubin Observatory(@vrubinobs.bsky.social), celebrating her enduring legacy in unveiling the unseen universe.

Open Sesame! The ELT doors have moved for the first time. This was no small feat, as each door will weigh 650 tonnes once completed. The ELT dome & its doors will guard the telescope from the harsh conditions of the Atacama Desert. https://www.eso.org/public/videos/potw2544a/ 🔭 🧪 📹 ESO/ACe

On Sunday, humans marked 25 years of continuous presence in Earth orbit, via the International Space Station. For @sciam.bsky.social, @astrojonny.bsky.social looks at the surge of commercial space stations that might keep this trend going to 2050. www.scientificamerican.com/article/the-...

arXiv will no longer accept review articles and position papers unless they have been accepted at a journal or a conference and complete successful peer review. This is due to being overwhelmed by a hundreds of AI generated papers a month. Yet another open submission process killed by LLMs.

Are you a grad student interested in writing for Astrobites, or do you know one? We're recruiting! Apply by November 26 :) astrobites.org/2025/10/31/a...

'Astronomers' is an anagram for 'moon starers.'

HAPPY INTERNATIONAL CAPS LOCK DAY SORRY FOR OUR DELAY WE DIDN'T EVEN KNOW THIS WAS A REAL DAY.

Calling all early career scientists! The NSF NRAO invites applications for the 2026 Jansky Fellowship Program. 🚨 Application Deadline is October 22, 2025 at 11:59 pm EDT 🚨 Details and apply: https://science.nrao.edu/opportunities/postdoctoral-programs/jansky

Karl Guthe Jansky was born #OTD in 1905. A radio engineer with Bell Labs, he investigated sources of static that might interfere with communications, and thus discovered the radio emission from our Galaxy in August 1931. en.wikipedia.org/wiki/Karl_Gu...

The true cost of “solar power at night” with Reflect Orbital If you played SimCity 2000, you might've loved the idea of "beaming power from space" down to Earth. Reflect Orbital took that idea, tech-bro'd it, and now could end "night" as we know it. bigthink.com/starts-with-... #space #astro

50 million light-years away, galaxy NGC 1097 & its tiny companion NGC 1097A are locked in a galactic embrace. The bright knots around NGC 1097’s centre are thought to be large bubbles of glowing hydrogen gas about 750–2500 light-years across. www.eso.org/public/image... 🔭 #Flashback

Low Earth orbit is filling up. Not just with #satellites, but also with dangerous, tumbling debris. As they collide, they multiply. If we do nothing, satellites will crash, creating chaos on Earth below. Meet the people trying to prevent this disaster. spectrum.ieee.org/kessler-synd...

The eXTP dense matter white paper is published! eXTP is going to be a great telescope for e.g. pulse profile modeling of both rotation-powered and accretion-powered millisecond pulsars. Launching in 2030! #highenergyastro 🔭 #densematter #neutronstars ui.adsabs.harvard.edu/abs/2025SCPM...

This long-lasting meteor shower peaks in late October and is known for producing bright “fireball” shooting stars. Here’s what to know about Orionids and other major showers that will appear in 2025. www.wired.com/story/watch-...

Happy 120th birthday, special relativity! Albert Einstein introduced special relativity in the paper "On The Electrodynamics Of Moving Bodies," published in Annalen der Physik #OTD in 1905. 🧪 ⚛️ 🔭 Manuscript: onlinelibrary.wiley.com/doi/abs/10.1... English: www.fourmilab.ch/etexts/einst...

Astronomy 🔭 and physics ⚛️ GRFP applications are due Nov 14! Only seniors and 1st-year grad students can apply now (no second years).

Neutron stars are born running, and recent research explores just how fast they start off. aasnova.org/2025/09/24/k... 🔭🧪

Happy 100th anniversary to Cecilia Payne-Gaposchkin’s extraordinary thesis!

The Virtual Astronomy Software Talk series welcomes new organizers. You can learn more about VAST on our website: vast-seminars.github.io. Please apply by Oct 15 : tinyurl.com/VASTorgs #astronomy #software

The discovery of the first #exoplanets www.bbc.co.uk/sounds/play/...