Are you ready to read about nuclear arsenals & operations? Of course you are! I explore the modern risks of nuclear war, from AI to misinformation, for @nature.com.
Thx to many experts including @mattkorda.bsky.social @cosmicpinot.bsky.social for this one.
www.nature.com/articles/d41...
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A wee thread on a paper I think has big holes and some suggestions for grad students out there looking for a fun calculation... (Technical) 🔭 🧪 #cosmology It's this one; it claims at least 1% of the photons in the CMB are actually generated in early-forming galaxies. 1/N arxiv.org/abs/2505.04687
MoM-z14, the most distant galaxy spectroscopically confirmed so far, observed by the James Webb Space Telescope appears as a small, extremely compact object with a reddish color, due to the cosmological redshift, which shifts UV/visible light towards the infrared due to the expansion of the universe.
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Here is MoM-z14, the most distant galaxy spectroscopically confirmed to date.
It is an extraordinarily luminous galaxy, discovered by a research team using #JWST, which has broken its previous record.
Research paper➡️ arxiv.org/abs/2505.11263
🔭 🧪 #science #cosmology #Webb
People we need to encourage PBS to post on bsky. Wise dude be he.
@cosmicpinot.bsky.social
“I look around& I am scared,” Schmidt said. “The Australian government investment in its sovereign research capability was 50% higher 15 years ago as a fraction of GDP.”
theconversation.com/nobel-laurea...
Large increases in public R&D investment are needed to avoid declines of US agricultural productivity | PNAS www.pnas.org/doi/10.1073/...
probably wouldn't have found this on my own!
A raw 2-dimensional CCD image from the Subaru Prime Focus Spectrograph. The very first one from the 360-night Strategic Program.
The first of millions!
The Subaru Prime Focus Spectrograph (PFS) has begun science operations, and I had the pleasure of leading the first night’s observations of the 360-night Strategic Program.
~2000 high-z galaxy spectra exposure, in 0.6 arcsec seeing! #cosmology 🔭🧪
The s8 tension is not going away. ⚛️ 🧪
physics.aps.org/articles/v18...
The Astronomy feeds now include 11 (!!!) brand new specific subfeeds! 🔭
The subfeeds try to cover every part of astronomy research with at least one feed.
All subfeeds automatically crosspost to the main Astronomy feed, too!
Here's a thread with links to all of them ⬇️
it is true- I am not ARC tracker - and I agree, ARC tracker has shown, anonymously, great leadership in science. I think ARC tracker's anonymity, must be preserved. so if ARC tracker were to win, a coreflute essence of them would need to accept the prize. Perhaps we could have a design contest?
@cosmicpinot.bsky.social any chance you can boost the signal on this? The one thing I do know is that you are not ARC Tracker!
Comet
Looks like Comet C/2024 G3 ATLAS’s days may be numbered… the comet has faded & may have broken up post-perihelion as the nucleus fades from view, leaving a ‘tail-less wonder’ crossing the sky. Here's a great parting view w/ESO’s Paranal Observatory by Yuri Beletsky: www.instagram.com/p/DFF3LKtpIz4/
Professor Ute Roessner AM FAA has been appointed as ARC CEO by the ARC Board.
They are Pro Vice-Chancellor, Research, at ANU at the moment. Their appointment starts 31st March and lasts for 5 years.
another 10° and you're there. Not sure about no power though.
Comet G3 ATLAS over with broad tail, taken from my backyard over Toowoomba
Comet G3 is getting exciting! Here it is from my back porch overlooking Toowoomba just an hour after sunset.
110mm 26x4s
False colour JWST NIRCam image of a nearby star forming region in front of a deep back ground of colorful galaxies. NASA, ESA, CSA, K. McQuinn (STScI), J. DePasquale (STScI)
Oh come ON now. This new JWST image is just ASTOUNDING.
I feel like I’m falling looking into it, and that I would fall forever, and that I would enjoy it.
NASA, ESA, CSA, K. McQuinn (STScI), J. DePasquale (STScI)
the next 20C is where the action is! but unlikely to see anything other than cool light pillars and aurora - moose will duck for cover. Enjoy winter - i'm about to get 2 days of it in Toronto - i'm b glad I remembered my hat!
then you need to get to a place where it's -40 and see it really in action - it's serious cool (in all dimensions)
Congratulations Prof Natarajan!
so my experience is this happens most of the time at <-37C or so - but requires special conditions much warmer than this? How cold is it?
Here is a historical research piece that combines a story about astronomy, art, history, and racism - it's both interesting and a highly enjoyable read. Thanks to Frank Bonjourno to pointing it out. www.lrb.co.uk/the-paper/v4... 🔭🧪
looking out through the seabreeze across the eucalypts that creates a haze
I live a 100km inland from the ocean, and we live at this time of year for the seabreeze- called locally the easterly. Today the wind turned from W to E, the dewpoint rose from 9 16C within 2 minutes, and the temp fell from 30C to 21C. The air smells of the sea, and becomes hazy.
my new ones have lost 3% in first year - I think they lose a lot to begin with and then settle down
managed not to export anything today - but 1.5kw is a bit brutal!
a perfectly clear day from sunrise to sunset today - broke my all time record for solar production (92kwH) today as I was able to use all of the production and not ground it (had to fully charge the car!)
I have a battery partially paid for by the NSW govt which, for the first time, was discharged remotely during a 'grid event' between 6.15 and 7.15pm today. Interesting to see the technology in action.
no reason it will not take off on its own - the french work easily taken on here. Comes down to cost and increased income. So I would not be surprised to see it be used
so haven't seen anything - might be good in the riverina in the first instance?
need a couple more degrees of warming before we're ready for this
