Blue the Science Dude's Avatar

Blue the Science Dude

@science-dude.bsky.social

Science communicator, Irish banjo player, and defender of reason and equality.

403 Followers  |  117 Following  |  282 Posts  |  Joined: 18.10.2024
Posts Following

Posts by Blue the Science Dude (@science-dude.bsky.social)

Prevention has a dollar value: TEENY-TINY compared to ~$781 billion dementia-related costs each year.

About 500,000 folks in the U.S. will be diagnosed in 2026; million NEW cases/year by 2060. Routine vaccinations are shown time and again to protected against age-related diseases. πŸ§ͺπŸ’‰

26.02.2026 18:37 β€” πŸ‘ 13    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
The differences in what Webb’s infrared instruments reveal and conceal within the PMR 1 β€œExposed Cranium” nebula is apparent in this side-by-side view. More stars and background galaxies shine through the view of Webb’s NIRCam (Near-Infrared Camera), while cosmic dust glows more prominently in the light captured by MIRI (Mid-Infrared Instrument). 

The dark center lane that contributes to this nebula’s distinctive brain-like appearance is more noticeable in NIRCam, but its apparent role in the ejection of material at the top and bottom of the nebula is seen more clearly in MIRI’s view. Observing the cosmos in various wavelengths of light provides a more complete picture of how the universe works.

The differences in what Webb’s infrared instruments reveal and conceal within the PMR 1 β€œExposed Cranium” nebula is apparent in this side-by-side view. More stars and background galaxies shine through the view of Webb’s NIRCam (Near-Infrared Camera), while cosmic dust glows more prominently in the light captured by MIRI (Mid-Infrared Instrument). The dark center lane that contributes to this nebula’s distinctive brain-like appearance is more noticeable in NIRCam, but its apparent role in the ejection of material at the top and bottom of the nebula is seen more clearly in MIRI’s view. Observing the cosmos in various wavelengths of light provides a more complete picture of how the universe works.

Same telescope (JWST) -- both infrared images -- but ssttrreettcchhh the near-IR (left) to mid-IR (right, duh) and you see GINORMOUS differences! Why? Dust from this dying star glows more brightly in the mid-IR!

Dubbed "Cranium Nebula" ~5k light-years away. πŸ§ͺπŸ”­πŸ§ 

science.nasa.gov/missions/web...

25.02.2026 15:28 β€” πŸ‘ 15    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Americans are β€˜Doomscrolling’ at Bedtime, Prioritizing Screen Time Over Sleep | Newswise A new survey from the American Academy of Sleep Medicine shows that over one-third (38%) of adults say using their phone or tablet before bed to view news and current events, or β€œdoomscrolling,” makes...

I β€œdoom scroll,” too. But the QUALITY of doom is AMAZING these days! New data reiterates what we all should know: turn the feckin’ phone off in bed; unless you’re watching actual trauma surgeries. They help me sleep. πŸ§ͺ🩺 www.newswise.com/articles/ame...

24.02.2026 12:51 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Trump’s NSF pick is a stranger to its research community Jim O’Neill will need to build ties, say former agency leaders

Is it just me, or does the potential new head of NSF remind you of Larry β€œBud” Melman?

Venture capital management seems an odd background to navigate the nuances of peer review… πŸƒ πŸ§ͺhttps://www.science.org/content/article/trump-s-nsf-pick-stranger-its-research-community

24.02.2026 12:05 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

ESO excels at crafting evocative images that also expand our understanding of stellar evolution. Here, 2 stars were born together, grew old, and are now shuffling off their mortal coils. Shakespearean astrophysics, indeed. www.eso.org/public/image... πŸ§ͺπŸ”­

23.02.2026 12:46 β€” πŸ‘ 22    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
Nasa targets March 6 date to send humans back around the Moon Nasa sets the launch date following a successful "wet dress rehearsal" of the Artemis II mission.

Heading down to Cape Canaveral for March 6. Fair winds and following seas... Go Artemis II!

www.bbc.com/news/article...

20.02.2026 16:34 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
The Rabbit Hole of Research | Jotham Austin, II PhD | Substack On The Rabbit Hole of Research podcast our goal is to have a little fun exploring science through the lens of science fiction, fantasy and pop culture. And hopefully learn a few facts that you can imp...

Allow me to recommend the "Rabbit Hole of Research" podcast. We spent 90 minutes last night talking asteroid impacts and planetary defense, movies, novels, the Big Bang, and more. A champion of outreach and the public understanding of science. @jomega22.bsky.social
jothamaustin.substack.com πŸ§ͺπŸ”­

19.02.2026 14:31 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1

Globular clusters are dense, kinda spherical agglomerations of up to 1 million (usually ancient and red) stars -- the dim, dull ornate ancient chandeliers of the universe.

18.02.2026 15:18 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
The low-surface-brightness galaxy CDG-2, shown in this image from NASA's Hubble Space Telescope, is dominated by dark matter and contains only a sparse scattering of stars. This galaxy is nearly invisible, but by using advanced statistical techniques, scientists identified it by searching for tight groupings of stars called globular clusters. At left, the white box marks the area that was examined. At right is a magnified view of that area. The circle marked with a dashed red boundary indicates the location of the dark-matter dominated galaxy. Within the red, dashed circle are four globular clusters outlined by small, blue circles. Several background galaxies also appear within the red circle, but these are not related to the galaxy CDG-2.

The low-surface-brightness galaxy CDG-2, shown in this image from NASA's Hubble Space Telescope, is dominated by dark matter and contains only a sparse scattering of stars. This galaxy is nearly invisible, but by using advanced statistical techniques, scientists identified it by searching for tight groupings of stars called globular clusters. At left, the white box marks the area that was examined. At right is a magnified view of that area. The circle marked with a dashed red boundary indicates the location of the dark-matter dominated galaxy. Within the red, dashed circle are four globular clusters outlined by small, blue circles. Several background galaxies also appear within the red circle, but these are not related to the galaxy CDG-2.

FOUND! A smattering of globular clusters & a sprinkling of stars glimmering through a whopping huge clump of dark matter: a so-called "dark galaxy." But with dark matter comprising 99% of this unconventional cosmic critter, dare we even call it a galaxy? πŸ§ͺπŸ”­ iopscience.iop.org/article/10.3...

18.02.2026 15:15 β€” πŸ‘ 11    πŸ” 3    πŸ’¬ 2    πŸ“Œ 0

With a dish 110 meters across, the GBT is a pulsar-hunting machine!

09.02.2026 21:40 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Credit: Dana Berry: Visualization of a black hole

Credit: Dana Berry: Visualization of a black hole

The first image of Sagittarius A*, or Sgr A*, the supermassive black hole at the center of our galaxy. OR... dark matter???
Credit: Event Horizon Telescope Collaboration

The first image of Sagittarius A*, or Sgr A*, the supermassive black hole at the center of our galaxy. OR... dark matter??? Credit: Event Horizon Telescope Collaboration

"What if we're wrong?"... one of the best questions to ask in science. πŸ”­πŸ§ͺ

What if the gravitational monster at the center of the Milky Way wasn't a black hole & was instead a dense core of dark matter? If true, it could explain many a vexing cosmic question.

Source: doi.org/10.1093/mnra...

09.02.2026 19:03 β€” πŸ‘ 14    πŸ” 4    πŸ’¬ 2    πŸ“Œ 0
In this composite image, red pixels mark locations on Europa’s surface where ammonia-bearing compounds were detected; purple indicates no such detection. Captured by NASA’s Galileo mission in 1997, the data is overlaid on a black-and-white mosaic that zooms in on a portion of the moon’s surface.
NASA/JPL-Caltech

In this composite image, red pixels mark locations on Europa’s surface where ammonia-bearing compounds were detected; purple indicates no such detection. Captured by NASA’s Galileo mission in 1997, the data is overlaid on a black-and-white mosaic that zooms in on a portion of the moon’s surface. NASA/JPL-Caltech

Post image

"Attempt No Landings There." Clarke
"Multiply flybys? Sure!" NASA

Europa Clipper arrives March 2031 to hopefully find habitable environs. New look at Galileo data raises hopes by confirming ammonia, another piece in the "potential for life puzzle."
iopscience.iop.org/article/10.3...
πŸ”­πŸ§ͺ

06.02.2026 15:02 β€” πŸ‘ 15    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Credit: Centre for the Subatomic Structure of Matter/University of Adelaide
This animation simulates fluctuations in energy fields of the quantum vacuum that can be associated with virtual quark-antiquark pairs.

Credit: Centre for the Subatomic Structure of Matter/University of Adelaide This animation simulates fluctuations in energy fields of the quantum vacuum that can be associated with virtual quark-antiquark pairs.

"Sometimes nothin' can be a real cool hand."

On subatomic scales, fleeting particle/antiparticle pairs appear and disappear in the nothin' of the quantum vacuum. In energetic proton/proton collisions at the RHIC, virtual particles transform into real particles.πŸ§ͺ www.nature.com/articles/s41...

05.02.2026 16:03 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
A dapper young man in a 3 piece suit with round framed glasses sits at the controls of a large antique looking telescope.

A dapper young man in a 3 piece suit with round framed glasses sits at the controls of a large antique looking telescope.

Happy birthday to Clyde Tombaugh, discoverer of Pluto in 1930 (when he was 24 years old).
πŸ§ͺπŸ”­

04.02.2026 17:04 β€” πŸ‘ 36    πŸ” 7    πŸ’¬ 0    πŸ“Œ 0

Headline in a venerable science publication: "NASA quietly pushed the launch date of the Artemis II moon mission into March..."

"Quietly" with a press conference, live video coverage, social-media posts, and updates to its homepage. Quietly like The Who's 1976 concert at Charlton Athletic Grounds.

04.02.2026 21:52 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
NASA Webb Pushes Boundaries of Observable Universe Closer to Big Bang - NASA Science NASA’s James Webb Space Telescope has topped itself once again, delivering on its promise to push the boundaries of the observable universe closer to cosmic

Astronomers have discovered the most distant cosmic object to date: a weirdly luminous galaxy a mere 2% younger than the universe itself. If we put that in human terms, this galaxy would be like an 18-month-old toddler racing through puberty. πŸ§ͺ πŸ”­Source: science.nasa.gov/missions/web...

04.02.2026 21:44 β€” πŸ‘ 21    πŸ” 7    πŸ’¬ 1    πŸ“Œ 0

So… a scratch?

14.01.2026 20:04 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I did catch them in 2002 (a while ago) yet recall seeing one every 10 seconds or so. Some were remarkably bright. I have yet to see a comparable shower, but hoping this might be the year.

11.12.2025 18:11 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
ALMA's Long Baseline Campaign has produced a spectacularly detailed image of a distant galaxy being gravitationally lensed, revealing star-forming regions β€” something that has never been seen before at this level of detail in a galaxy so remote. The left panel shows the foreground lensing galaxy (observed with Hubble), and the gravitationally lensed galaxy SDP.81, which forms an almost perfect Einstein Ring, is hardly visible. The middle image shows the sharp ALMA image of the Einstein ring, with the foreground lensing galaxy being invisible to ALMA. The resulting reconstructed image of the distant galaxy (right) using sophisticated models of the magnifying gravitational lens, reveals fine structures within the ring that have never been seen before: several dust clouds within the galaxy, which are thought to be giant cold molecular clouds, the birthplaces of stars and planets.
Credit: ALMA (NRAO/ESO/NAOJ)/Y. Tamura (The University of Tokyo)/Mark Swinbank (Durham University)

ALMA's Long Baseline Campaign has produced a spectacularly detailed image of a distant galaxy being gravitationally lensed, revealing star-forming regions β€” something that has never been seen before at this level of detail in a galaxy so remote. The left panel shows the foreground lensing galaxy (observed with Hubble), and the gravitationally lensed galaxy SDP.81, which forms an almost perfect Einstein Ring, is hardly visible. The middle image shows the sharp ALMA image of the Einstein ring, with the foreground lensing galaxy being invisible to ALMA. The resulting reconstructed image of the distant galaxy (right) using sophisticated models of the magnifying gravitational lens, reveals fine structures within the ring that have never been seen before: several dust clouds within the galaxy, which are thought to be giant cold molecular clouds, the birthplaces of stars and planets. Credit: ALMA (NRAO/ESO/NAOJ)/Y. Tamura (The University of Tokyo)/Mark Swinbank (Durham University)

ALMA discovery in 2015 popped up in my OneDrive feed. Still amazing! Einstein ring -- massive foreground galaxy focusing light from more distant galaxy to reveal details never before seen in a galaxy so remote, including phenomenally massive yet concentrated clumps of star-forming material. πŸ§ͺπŸ”­

10.12.2025 14:10 β€” πŸ‘ 18    πŸ” 0    πŸ’¬ 0    πŸ“Œ 2

ALMA is so cool! Well, it does observe the cold universe. Here’s a glimpse of what the Sun will look like a few billion years hence. πŸ§ͺπŸ”­

02.12.2025 15:19 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

A brilliant story by @astrokimcartier.bsky.social! In Romeo and Juliet, Mab is the 'fairies' midwife,' delivering dreams and shaping fantasies. In planetary geology, she's equally mischievous, inspiring scientists' dreams about another rendezvous with Uranus. πŸ§ͺπŸ”­

28.11.2025 14:33 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Brilliantly written feature. Brava!

28.11.2025 14:28 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

That's really cool, @philplait.bsky.social. So much left to uncover -- cosmically and culturally.

19.11.2025 14:12 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

Bravos Blue Origin! New Glenn had a good day. Nailed booster landing... Next milestone, sending the twin Red and Blue ESCAPADE spacecraft to Mars. Nice to see some good news.

13.11.2025 21:09 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Best. News. All. Week.

13.11.2025 12:21 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Go Blue! (and Gold).

07.11.2025 22:57 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Soft Drink Consumption and Depression Mediated by Gut Microbiome Alterations This cohort study examines the association between soft drink consumption and major depressive disorder diagnosis and severity and whether this association is mediated by changes in the gut microbiota...

Soft drinks linked to increased and more-severe depression, especially among women. The connection? Sugary drinks unbalancing the gut microbiome. Vicious cycle: depression ⬆️ cravings for sweets, soft drinks changes gut, depression worsens. Unsweetened tea, plz. πŸ§ͺβš•οΈ jamanetwork.com/journals/jam...

07.11.2025 16:58 β€” πŸ‘ 9    πŸ” 3    πŸ’¬ 0    πŸ“Œ 1
Post image

Ice-nine of Cat's Cradle fame? How about Ice XXI! Sure, at 2 gigapascals (about 30,000 lbs per sq inch) for a mere microsecond (1 millionth of a second). So much more to learn about this deceptively simple molecule! @newswise.bsky.social πŸ§ͺ
www.newswise.com/articles/wor...

06.11.2025 15:15 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Hi there, the paper with data, references, and acknowledgements (including funding) is at the link provided in my post.

06.11.2025 14:57 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Adjusted hazard ratios (aHRs) and 95% confidence intervals (95% CIs) for arterial thromboses following COVID-19 vaccination, by dose and brand.

Adjusted hazard ratios (aHRs) and 95% confidence intervals (95% CIs) for arterial thromboses following COVID-19 vaccination, by dose and brand.

COVID-19 vaccines save lives, but evidence is mounting that vaccines also protect against heart disease. A study in Nature Communications again shows lower rates of heart attacks and strokes after the first dose. Infections increase those risks. RFK Jr is a prat. πŸ§ͺ🩺
www.nature.com/articles/s41...

06.11.2025 12:13 β€” πŸ‘ 26    πŸ” 10    πŸ’¬ 1    πŸ“Œ 1