Good night 😴dear people at #Bluesky💙
with
Nature Unedited
@NatureUnedited
Studies show that watching a beaver eat cabbage lowers stress by 17% ‼️---
so I leave you alone with THIS 👇😊❤️🔥
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LOL. Like we’ll still have an Air Force in 50 years.
It looks like a POSS image to me, so DSS makes sense, but I am also forgetful so didn’t want to just assert that. 😬
The latest JWST cycle call resulted in proposals requesting nearly 100,000 hours of time for ~8,000 available. That corresponds well to the proposal success rate of 8% (i.e., counting proposal numbers rather than hours requested.)
Funny how academic programs no longer “align with the priorities” of academic administrations.
Really? That is weird. I too was wondering why two tankers would be in close enough proximity to collide.
Definitely not HST with that field of view.
I’m not hostile to the possibility; it’d be really cool. But I’ve also seen theoretical arguments that low Z has to produce massive stars fail & fail repeatedly ([Fe/H] ~ -2 was supposed to show a big effect already) so I am skeptical that it’ll happen to work out THIS time.
Yes, ok, totally not what I was meaning (& apparently failing) to get at, which is that I doubt the universe ever made the supermassive stars everyone imagines Pop III stars to be. We’ll never see the signatures of PISN if there were never any stars big enough to explode as PISN.
They’re defending themselves somehow
I didn’t invoke extragalactic observations; I was thinking of globular clusters. But never mind
- this just reminds me that these platforms are completely inadequate for discussing science. Do let us all know if you find an ancient, unpolluted pop III star. That’d be really cool. Also, good luck.
FFS
Many people do indeed believe that the first (Pop. III) stars were massive, the main reason being the difficulty of cooling zero metallicity gas. But there is precious little evidence for variation in the IMF with metallicity, even to arbitrarily small values. So maybe the IMF is not set by [Fe/H]?
Good example to Look at the Data @sarahkendrew.bsky.social
Surely being a toxic asshole is a necessary job qualification here?
Also pictured here is Lawrence Krauss, who is a scientist with a lot more in common with Epstein than with Hawking. Haven’t read the article and don’t plan to, but it wouldn’t surprise me if Krauss was the one suggesting scientists to invite for this exercise in reputation laundering.
Death demands shorter working hours.
Local streets testing the line between “pothole” and just plain “hole.”
TFW the only humor left is gallows humor.
If only we were better at identifying enemies.
Got this email today, plus two follow-ups.
The Butlerian Jihad cannot come soon enough.
This got a lot of people monologuing.
He’s evil, but he’s also weak.
He may have developed an immunity to that from experiencing it so much.
Kinda wild how many sci-fi movies are premised on the need for the protagonist to take a dangerous job to pay for the healthcare of a loved one. Someone should contact the future to suggest possibilities other than American health insurance.
I work with our uni’s institutional research office on matters that are not related to student demographics. At least I did until recently. This year they’re having so much of their time wasted by Trump admin inquiries & data demands that they don’t have time for anything else.
![A Direct View of the Chemical Properties of Water from Another Planetary System: Water D/H in 3I/ATLAS
Luis E. Salazar Manzano, Teresa Paneque-Carreño, Martin A. Cordiner, Edwin A. Bergin, Hsing Wen Lin, Dariusz C. Lis, David W. Gerdes, Jennifer B. Bergner, Nicolas Biver, Dominique Bockelée-Morvan, Dennis Bodewits, Steven B. Charnley, Jacques Crovisier, Davide Farnocchia, Viviana V. Guzmán, Stefanie N. Milam, John W. Noonan, Anthony J. Remijan, Nathan X. Roth, John J. Tobin
All detected water reservoirs in the solar system exhibit a deuterium enrichment that links back to the physical environment at the time of stellar birth. Gas-phase and ice-grain D-enrichments occur through chemical processes that operate at low temperatures (<~30~K) pointing towards an origin in the pre-stellar molecular cloud or in the outer parts of the protoplanetary disk. However, not all stars are born in environments similar to our Sun, nor do their subsequent evolutionary histories follow the same path. These environmental differences can be traced by the water D/H ratio. Here we use ALMA observations of the interstellar comet 3I/ATLAS to constrain the water D/H ratio in extrasolar cometary material. With a water D/H value of [D/H]H2O>6.6×10−3, 3I/ATLAS shows a deuterium enrichment exceeding Earth's ocean value by more than a factor of ≳40 and typical Solar System cometary values by more than a factor of ≳30. The elevated deuterium enrichment points to water that formed under colder, less irradiated conditions and from less thermally processed material, consistent with an origin in a planetary system that formed under different physical and chemical conditions than our own.
Comments: Submitted to Nature Astronomy. 3 Figures, 2 Extended Data Tables, 3 Extended Data Figures, 1 Supplementary Table, and 4 Supplementary Figures](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:vsqpdbfrqt7p5p4tlssvjvop/bafkreicxaivg344z4emxhi2mtavsiutl2fyahewfnxmhdawpobap7iri5q)
... and another paper with ALMA observations by Salazar Manzano et al. (including many of the authors of the JWST paper) that also finds a very high deuterium abundance in 3I/ATLAS
arxiv.org/abs/2603.07026
Huh. Sounds like premeditation of war crime.
