The Neil Gehrels Swift Observatory is crucial for time domain astrophysics. Unfortunately its orbit is decaying and it will burn up in the atmosphere next year. But maybe there is a last minute hope... Fingers crossed! 🔭☄️🧪⚛️ www.katalystspace.com/post/nasa-te...

Radio detection of air-showers independent of a particle detector providing the trigger is a big step towards future observatories of cosmic rays and eventually ultra-high energy neutrinos! 🔭🧪

My new piece is live! While the atrocities of RFK Jr. are many (and well beyond what can be summarized in a single blog post), we at @standupforscience.bsky.social have selected the nine most atrocious. Read below 👇 www.standupforscience.net/blog/9-worst... #ImpeachRFKNow

🔊 Sound on to experience things that go “bump” in the universe! #NASARoman will net 10,000+ exploding stars, including Type Ia supernovas that let us measure the expansion history of the universe: bit.ly/4ftjQip 🔭 🧪

A wonderfull paper for the summer vacation reading list.

🤦‍♂️

Big day for the matriarchy! 🥳 Huge congrats to the awesome Prof. Doughtery, lead on the Jupiter-bound ESA JUICE mission & STFC Exec Chair. If anyone's confused on the astro royal hierarchy: Michele and I are the astro equivalents of 🇬🇧Westminster and 🏴󠁧󠁢󠁳󠁣󠁴󠁿Holyrood 🤗 ℹ️: www.bbc.co.uk/news/article... 👩‍🔬🔭🧪

How do we search for TeV gamma rays from FRBs? Our new H.E.S.S. paper sums up over a decade of efforts: from first follow-ups to real-time triggers and global MWL campaigns. No detections yet, but the search goes on! 🔭☄️ doi.org/10.1088/1475...

Indeed, very promising news for European research funding. 🔭☄️

No words...

A great excursion during ICRC2025 to one of the birthplaces of cosmic ray research: the Jungfraujoch research station where Auger, Leprince-Ringuet, Ehrenfest, et al. discovered extensive air showers. The research station remains active today, right in the middle of a crowded tourist destination. 🔭

We are excited to announce the discovery of #GW231123, a gravitational-wave signal from the merger of two high-mass black holes to form one about 190–265 times the mass of our Sun ligo.org/ligo-virgo-k... #O4IsHere 🔭🧪☄️

🔊 Two really massive black holes, COLLIDING💥! LIGO has seen ~300 of these collisions since 2015, but this one is HUGE creating a black hole 256x the mass of the Sun. It's likely the merging black holes were themselves the by-product of previous mergers 🤓🔭🧪 ℹ️: www.theguardian.com/science/2025...

Finally a gllmpse of hope... 🔭🧪⚛️☄️ www.nature.com/articles/d41...

🚀 A new version of Astro-COLIBRI is live! 🔭 Easier searches, photometry filters, host galaxy classifications, and much more. ☄️🧪⚛️ Check out all the updates here 👉 forum.astro-colibri.science/t/new-releas...

Deadline extended! You have only a few days more to apply for the Astro-COLIBRI Multimessenger Astrophysics Workshop (Oct 20–24, 2025, Paris-Saclay, France). Don’t miss the opportunity! 🔭☄️🧪⚛️ www.multimessenger-astrophysics.com

🌌 The Vera Rubin Observatory will revolutionize how we see the night sky — building the ultimate time-lapse of the Universe! 🔭 First public detections of transients are expected soon: you’ll be able to follow them in Astro-COLIBRI. ☄️ 📸 First images drop today! 📺 Live at 17h (CEST): shorturl.at/ey8QG

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Join the Astro-COLIBRI team as a Postdoc in Multi-Messenger Astroparticle Physics! 🔭: Contribute to cutting-edge science with H.E.S.S., CTAO, SVOM & more ☄️: Focus on transients, data analysis, and software development Details: www.multimessenger-astronomy.com/team--open-p...

LIGO and Virgo will resume observing on 11 June joined by KAGRA! All four kilometre-scale gravitational-wave detectors will observe at the same time! Our observing run (O4) has been extended to run until 18 November 2025 and we look forward to many discoveries ligo.org/ligo-virgo-k... ☄️🔭🧪

From Skylar Grayson @skylargrayson.bsky.social : This post summarizes the proposed major cuts to NASA and the NSF and the impacts they would have, and provides resources to help fight back against this wasteful and unnecessary attack on science. 🔭✨☄️ astrobites.org/2025/06/02/b...

🔥@philplait.bsky.social's excellent newsletter: "This isn’t a budget cut. It’s an execution. I don’t say this lightly. This proposed budget will ring the death knell for NASA as we know it." What can non-US based astros do to help support the fight? 🔭🧪 badastronomy.beehiiv.com/p/trump-thre...

Here's NASA astrophysics, if I read the president's proposed budget correctly. 🔭

There's a lot to unpack in the president's FY26 requested #NASA budget, but the near zeroing of the physics of the cosmos program (from $196M to $1.5M) is especially bleak. If passed, the future of high-energy astrophysics is not in the US. 🔭

"Why should my tax dollars go to fund your astrophysics research?" A thread. 🔭🧪 Brushing aside how absurdly little of the federal budget goes to science (according to the Planetary Society NASA accounts for only 0.3% of federal spending), the benefits of funding astronomy fall into two camps. (1/n)

How bad will it be? Catastrophic. Proposed cuts to #NSF, #NIH, and #NASA will set the US R&D landscape back 25 yrs+, cause economic and job loss now, and undermine innovations to come. But, this is the WH's *proposed* budget. Speak up now before it is too late. (inflation adjusted $-s below)

The details of the proposed budget cuts to NSF are just horrific. 🔭🧪⚛️☄️ Example: "the astronomical community will be stunned that the agency intends to wind down one of the sites for the celebrated Laser Interferometer Gravitational-Wave Observatory (LIGO)." WTF? www.science.org/content/arti...

Speechless... 🔭🧪⚛️☄️ We knew from the earlier versions that this will be bad, but reading the actual numbers and details is still stunning. www.science.org/content/arti...

Voici ce que signifie le budget initial 2026 de le NASA. Une hécatombe scientifique. 1ère image de @jtuttlekeane.bsky.social. 2ème image de @ohdearz.bsky.social 3ème image qui synthétise les deux premières @theplanetaryguy.bsky.social A noter aussi, l'annulation de la Lunar Gateway.

🚨 SAVE THE DATE: The world's First Look at images from NSF–DOE Rubin Observatory is coming June 23, 2025! 🔭🧪 Get ready for a preview of how Rubin will soon #CaptureTheCosmos in its decade-long survey 🌌 More details soon—stay up to date at rubinobservatory.org/news/rubin-first-look

🚨 Last chance to register! Join us online on 10 June 2025 for the ACME Multimessenger Citizen Science Training Event — a unique opportunity for amateur astronomers to get hands-on with real-time astrophysical observations. 🔭🧪⚛️ citizen-science.sciencesconf.org

What a nightmare... ☄️🔭🧪⚛️

Well deserved! Congrats Neil! 🧪🔭⚛️☄️

Are you based in the U.S. 🇺🇸 or Canada 🇨🇦 and thinking of doing research in Europe? ERC grants offer up to €4.5 million to support groundbreaking, investigator-driven frontier research in all fields. Watch the dedicated info session for researchers in your region👉 youtu.be/92QYink1Lik #ChooseEurope

Today, the ERC formally adopted a decision to increase its support for researchers moving to Europe. On top of its normal grants, the ERC offers 'start-up' funding to help PIs establish laboratories / research teams in Europe. This extra funding is now x2 (up to €2 million!) europa.eu/!6Vdgmp

Astronomer thinking of moving? Join me at Paris-Saclay (France) to work on multi-messenger astrophysics at the highest energies, the Astro-COLIBRI platform and citizen science. The call for Marie Curie Fellowships is open - get in touch if interested! 🔭🧪⚛️☄️ marie-sklodowska-curie-actions.ec.europa.eu

Exclusive: National Science Foundation staff were told today that the agency’s 37 divisions—across all eight directorates—are being abolished and the number of programs within those divisions will be drastically reduced.

Astrophysics sometimes takes you to extreme, remote places— like San Pedro de Atacama for the SWGO collaboration meeting, including a visit to the future high-energy gamma-ray observatory site. At 4775 m above sea level! 🔭🧪☄️

A 5 panel mosaic - Corona Borealis. I've also marked approx where T Coronae Borealis "Blaze Star" is - the possible location is where the nova event might happen. #astronomy #astrophotograpy

A great new addition to the Astro-COLIBRI ecosystem: a plugin for the popular N.I.N.A. software! Built by Christoph Nieswand — a skilled and passionate amateur astronomer — it loads transients from Astro-COLIBRI right into N.I.N.A. Never miss a chance to catch the unexpected! 👀✨ shorturl.at/UM3WU

A great opportunity to join the thriving research at Université Paris-Saclay (France) as a postdoctoral fellow! Feel free to reach out to me if you interested in #multimessenger #astroparticle physics. Repost for #EduSky🍎 and #AcademicSky www.cofund-physics.universite-paris-saclay.fr

A great opportunity to join the thriving research at Université Paris-Saclay (France) as a postdoctoral fellow! Feel free to reach out to me if you interested in #multimessenger #astroparticle physics. 🔭🧪⚛️☄️ www.cofund-physics.universite-paris-saclay.fr

More urgent than ever, now is the time to call up your congresspeople (see e.g. AAS guide if you want): aas.org/urge-nasa-su...

The official budget proposal for NASA is out. It is as horrible as the preliminary versions foreshadowed... 🧪🔭⚛️☄️ www.nasa.gov/news-release...

We’re creating a massive, 3200-megapixel group photo…and it won’t be complete without YOU! NSF–DOE Rubin Observatory’s LSST Camera — the largest camera in the world — began on-sky engineering tests this month. So let’s celebrate! 🔭🧪 Join by May 14: rubinobservatory.org/explore/acti...

All new research grants have been frozen at the US National Science Foundation — an action apparently ordered by the Department of Government Efficiency https://go.nature.com/42pvdDe

Almost every line of this story would have been simply unbelievable a few months ago: —Pioneering cancer researcher; —*Arrested* at airport in Boston; —Now indefinite ICE detention in Louisiana; —"Crime": not declaring some frog-embryo samples for research. Read it. www.nbcnews.com/news/us-news...

#ACES is on its way! 🚀 @esa.int's Atomic Clock Ensemble in Space is en route to the International Space Station 🛰️ On 25 April, a robotic arm will install this European experiment on the outside of @esa's Columbus module, ready to redefine time from space ⏱️💫

Thoughts on last week's alien-finding kerfuffle, including mention of spaghetti, and a golden rule for institutional press releases. Let me know what you think: www.lastwordonnothing.com/2025/04/21/a... (PS Thanks to @annfinkbeiner.bsky.social & LWON for hosting me) 🔭 🧪

From Skylar Grayson/Cole Meldorf/Abby Lee/Drew Lapeer/Catherine Slaughter: NASA is facing severe budget cuts that would cancel missions ready for launch, put tens of thousands out of jobs, and set science back decades. We need your help to ask Congress to prevent this! astrobites.org/2025/04/15/h...