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vṛtrá

@thetafly.bsky.social
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Martin George @jannerbirder.bsky.social · 10/09/2024
A research team has achieved a breakthrough in #ornithology and artificial intelligence by developing an end-to-end system to detect and identify the subtle nocturnal calls of migrating birds. www.rarebirdalert.co.uk/v2/Content/R...
rarebirdalert.co.uk
Researchers unveil nocturnal migration system which identifies species on the move
Researchers say they have achieved a breakthrough in ornithology and artificial intelligence by developing an end-to-end system to detect and identify the subtle nocturnal calls of migrating birds
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Tarah Wheeler @tarah.org · 25/06/2024
I am profoundly honored to say that today I joined the @eff.org board of directors. Here to fight for digital rights and the future of the open internet. www.eff.org/press/releas...
eff.org
EFF Welcomes Tarah Wheeler to Its Board of Directors
SAN FRANCISCO—The Electronic Frontier Foundation (EFF) is honored to announce today that Tarah Wheeler — a social scientist studying international conflict, an author, and a poker player who is CEO
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JWST Observer @jwstobserver.bsky.social · 24/06/2024
A new plugin for #JWST's Imviz and Cubeviz allows for the visualization of the data quality arrays stored in specific pipeline products. Read more: bit.ly/4ePx48L
Line drawing of JWST on a background of a composite image of the Cartwheel Galaxy observed by JWST
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Astronomy Picture of the Day 🪐 @apod.shinyakato.dev · 09/06/2024
How to Identify that Light in the Sky - © HK (The League of Lost Causes) - Pic - HD Pic - About Astronomy Picture Of the Day #astrophotos Maintained by @shinyakato.dev 🔭 READ MORE 🔭
What is that light in the sky? The answer to one of humanity's more common questions may emerge from a few quick observations.  For example -- is it moving or blinking? If so, and if you live near a city, the answer is typically an airplane, since planes are so numerous and so few stars and satellites are bright enough to be seen over the glare of artificial city lights. If not, and if you live far from a city, that bright light is likely a planet such as Venus or Mars -- the former of which is constrained to appear near the horizon just before dawn or after dusk.  Sometimes the low apparent motion of a distant airplane near the horizon makes it hard to tell from a bright planet, but even this can usually be discerned by the plane's motion over a few minutes. Still unsure?   The featured chart gives a sometimes-humorous but mostly-accurate assessment.  Dedicated sky enthusiasts will likely note -- and are encouraged to provide -- polite corrections.   Chart translations: Italian, German, Latvian, Persian, Polish, Spanish, and Turkish
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Heidi Burdett @hlburdett.bsky.social · 30/05/2024
The May issue of #AquaticConservation #AQC is complete! 📸Cover: Mayflies in Brazil, Lima et al Other papers on fish, dragonflies, plastics, whales, turtles, sharks, coralline algae, worms, crabs, catfish, octopus, wetlands, lobsters & youtube! onlinelibrary.wiley.com/toc/10990755... 🦑🧪🌎🦤💧⚒️
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Nora's Guide to the Galaxy @ngttg.bsky.social · 31/03/2024
Over on my channel we're talking about the record-setting exoplanets as a bonus for the Exoplanets 101 series! youtu.be/C5diSsLiPCU?... 🧪🔭🛰️
youtu.be
Exoplanets 101: Extremes
Handing out trophies today to the most extreme exoplanets we know of—the ones that set the records, that stand out a little from that 5500+ population of exo...
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Nora's Guide to the Galaxy @ngttg.bsky.social · 05/04/2024
SPACE FACTS: DAY 228/365🛰️🧪🔭 Uranus spins on its side! Most of the planets spin almost vertically compared to their orbits, like Earth's 23.5° axial tilt or only 3° for Jupiter. But Uranus's axial tilt is 98°! It likely got knocked into this orientation by a huge collision in the early solar system.
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Nora's Guide to the Galaxy @ngttg.bsky.social · 25/04/2024
SPACE FACTS: DAY 237/365🛰️🧪🔭 There are at least 5500 galaxies in the area covered by a grain of rice held at arm's length, as revealed by the Hubble eXtreme Deep Field, which stared at a patch of sky for a total of 22.5 days over 10 years to see galaxies as faint as magnitude 31! Image: NASA/ESA
Hubble eXtreme Deep Field (XDF)
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MU-Peter Shimon 🀄 @mu-peter.bsky.social · 27/05/2024
Homology and the evolution of vocal folds in the novel avian voice box 🧪 www.cell.com/current-biol... Indications that co-option of an ancestral developmental program facilitated the origin of vocal folds in the avian syrinx.
Homology and the evolution of vocal folds in the novel avian voice box
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Phil PlAIt @philplait.bsky.social · 27/05/2024
Do not be fooled by appearances! The nearby galaxy M82 is NOT exploding! This is just a defense mechanism some galaxies employ when they feel threatened. In a few hundred million years it'll settle back down on its own. badastronomy.beehiiv.com/p/m82-explod... 🧪 🔭
badastronomy.beehiiv.com
Is M82 exploding? No, but it’s not exactly relaxing on a beach, either.
JWST images of the nearby galaxy show huge tendrils of material blasting away
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Nora's Guide to the Galaxy @ngttg.bsky.social · 22/04/2024
Rømer delay still is used to account for observational light delays due to the Earth's position in its orbit!
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vṛtrá @thetafly.bsky.social · 08/05/2024
y is this being postponed? bsky.app/profile/phil...
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Kelly Lepo @kellylepo.bsky.social · 07/05/2024
Baby stars are messy eaters. This diagram from a review article illustrates the complex interplay between protostars, magnetic fields, and the surrounding gas on large and small scales. 🧪🔭 1/ Frank et al. 2014 ui.adsabs.harvard.edu/abs/2014prpl...
Three-panel illustration showing the disk scale area around a forming T Tauri star at 0.01 AU, 0.05 AU, and 5 AU.

The 0.01 AU panel shows a closeup of the star with three rope-like accretion columns flowing into the surface. There are dark star spots on the surface of the star. Arrows show stellar winds blowing off of the star.

The 0.05 AU panel shows a more zoomed-out view, with the star and the innermost portion of the accretion disk visible. The star is at the center and the disk fills the outer third of the frame. There is a gap between the star and the disk. Connecting the two are the accretion columns of magnetized gas.

The 5 astronomical unit panel shows the flared accretion disk and jet. The star is now too small to see. The disk extends horizontally and flares up vertically, making a wedge shape. A columnated jet rises up above and below the disk. Arrows show the gas moving up vertically and magnetic fields twisting around the column-like structure.A two-panel illustration showing the envelope scale area around a forming star at 100 astronomical units and 500 astronomical units.

The 100 astronomical unit panel shows the area around a clump in the jet. A line traces a backwards C shape that fills most of the panel. The line is labeled "bow shock". To the left are a series of x and o shapes representing the pileup of gas. The o shapes are labeled "forbidden lines" the x shapes are labeled "H alpha emitting layer".

The 500 AU panel shows a wider view of the disk, jet, and cavity carved by the variable-velocity, clumpy, precessing jet. The flared disk extends horizontally and flares up vertically, creating a wedge shape. The edge of the disk is labeled "cavity wall". Clumps of material extend above and below the disk in a line at its center. The clumps are slightly misaligned from each other horizontally. The topmost clump is labeled "bow shock".An illustration showing the 1-parsec scale area in a molecular cloud forming many new stars. There are two darker areas. The one at the bottom right is labeled “core” and has three hourglass-shaped cavities carved out by new stars. The dark area at upper right is labeled "cluster". It has four hourglass-shaped cavities. They are labeled "active outflows". Two larger hourglass-shaped light areas are at the top of the frame. They are labeled "fossil outflow cavities". The lighter areas at the outer edge of the frame are filled with abstract, wavey lines. They are labeled "turbulence on large and small scales." Solid wavy lines with arrows are labeled “Alven waves driven by turbulence”
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naturepoker @binomicalabs.org · 07/05/2024
It looks like an embedded arcade game-within-a-game on one of Borderlands 3's maps was a real metagenomics project. Running crowd-sourced matching of bases on real world samples. Cool stuff! 🖥️🦠🧪 www.nature.com/articles/s41...
nature.com
Improving microbial phylogeny with citizen science within a mass-market video game - Nature Biotechnology
Gamification of the multiple sequence alignment problem improves microbial phylogeny estimates.
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Elakha Alliance @elakhaalliance.bsky.social · 30/04/2024
Discover the enchanting array of creatures inhabiting our nearshore marine ecosystem, contributing to its remarkable diversity and beauty 🦀💙🐚! Thanks to the Cape Perpetua Collaborative for putting this together. #marinelife #ocean #oregoncoast #tidepools #tidepool #pnw
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Nora's Guide to the Galaxy @ngttg.bsky.social · 07/04/2024
SPACE FACTS: DAY 230/365🔭🛰️🧪 Fusion can happen outside of the core of evolved stars. A very massive star at the end of its life can be fusing silicon in its core surrounded by shells of oxygen-burning, neon-burning, carbon-burning, helium-burning shell, and hydrogen-burning!
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Nora's Guide to the Galaxy @ngttg.bsky.social · 30/03/2024
SPACE FACTS: DAY 224/365🧪🛰️🔭 While asteroids are classified by their composition, comets are classified by their orbits: short-period comets, orbits <200 years; long-period comets, can be orbits lasting millions of years; or unbound comets, which pass through the solar system and do not return.
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Jwst Feed @jwstfeed.bsky.social · 28/04/2024
The weekly public JWST data report has been updated for April 29 - May 5. Next week we'll receive NIRCam & MIRI images of NGC 3521, NGC 2903, NGC 3368 & NGC 2997, and more. Full report- jwstfeed.com/PostView/Fee... 🔭 🧪
"Public Data" in calibri-white over JWST mirror logo, with deep universe image, taken by JWST, as the background.
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Jwst Feed @jwstfeed.bsky.social · 26/03/2024
Statistics of JWST observation time. 🔭 🧪
Cycle 3 results and Cycle 4 plans
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Jwst Feed @jwstfeed.bsky.social · 19/04/2024
The weekly public JWST data has been updated for Apr 22 - Apr 28. This week, the most interesting observations will be NIRCam & MIRI ones of the galaxies NGC 2775, NGC 3344, NGC 3507, NGC 3239 + a NIRCam one of NGC-602. Feed report- jwstfeed.com/PostView/Fee... 🔭 🧪
"Public Data" text over JWST logo, with deep universe image taken by JWST as a background.
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Nora's Guide to the Galaxy @ngttg.bsky.social · 11/04/2024
SPACE FACTS: DAY 232/365🧪🔭🛰️ When objects orbit further away from their sun, their orbits take a lot longer. The orbital period increases with the 3/2 power of the orbital distance. E.g., Earth orbits at 1 AU in 1 year, Neptune orbits at ~30 AU in 165 years. (This is Kepler's Third Law!)
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Nora's Guide to the Galaxy @ngttg.bsky.social · 16/04/2024
SPACE FACTS: DAY 234/365🧪🛰️🔭 The sun doesn't just have cool dark spots—it also has hot bright spots called faculae, which vary on the same cycle as spots. The effect of faculae is a bit more than that of sunspots, making the sun a smidge brighter at sunspot maximum vs sunspot minimum. Image: NASA
An image of the sun at high activity with many bright spots and dark spots.
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Nora's Guide to the Galaxy @ngttg.bsky.social · 17/04/2024
SPACE FACTS: DAY 235/365🧪🔭🛰️ Back when the entire universe was a dense sea of plasma, dark matter halos created sound waves in the plasma called Baryonic Acoustic Oscillations. We can see their echoes in both the Cosmic Microwave Background and the present-day clustering of galaxies in the universe!
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Project Seahorse @projectseahorse.bsky.social · 19/04/2024
What a gorgeous #iSeahorse observation! 😍 #Seahorses use their 🐒-like tails to hold onto objects in their environment for support, like sponges, seagrasses, seaweeds (like seen here), or even corals! ⚓ 📸 H. breviceps by sharejosie on iNaturalist
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UBC Oceans @ubcoceans.bsky.social · 19/04/2024
Under ocean waves, kelp functions much like a forest ecosystem on land. What are we doing to protect it? hakaimagazine.com/features/exp... via @hakaimagazine.com
hakaimagazine.com
Exploring the Forests of the Sea | Hakai Magazine
Under ocean waves, kelp functions much like a forest ecosystem on land. What are we doing to protect it?
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Mya Breitbart @viromegirl.bsky.social · 20/04/2024
How can such a gorgeous heart-shaped phytoplankton cause so much misery? Spent some quality microscope time with Karenia brevis today - a dinoflagellate that causes red tide in Florida 🧪 🦑 🦠 #USFCMS
Heart shaped dinoflagellate - green chloroplasts ring the outside of a 4-chambered cell
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Science Friday @scifri.bsky.social · 19/04/2024
America’s most-consumed fruit is at risk from a fungal disease. Reporter Bradley George joins us to talk about researchers in North Carolina who are on a mission to save Cavendish bananas. www.sciencefriday.com/segments/ban...
sciencefriday.com
Fighting Banana Blight In A North Carolina Greenhouse
America’s most-consumed fruit is at risk from a fungal disease. Researchers in North Carolina are on a mission to save Cavendish bananas.
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Rachel Neugarten @rachelneugarten.bsky.social · 06/04/2024
Our open-access paper exploring the impacts of a political crisis in Madagascar on the performance of community forests and protected areas is published! www.nature.com/articles/s41... 🌏🧪
A landscape depicting a dirt road running past rice paddies and past forest in Madagascar
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Dr Charlotte Findlay @chazzfindlay.bsky.social · 05/04/2024
🔊 🐬 ➡ Check out our new #OpenAccess paper where we present evidence that harbour #porpoises on the Scottish west coast responded to intense & chronic Acoustic Deterrent Device (ADD) noise from #aquaculture using 9-years of HWDT data! Paper link 🔗: lnkd.in/eMzGD_t6 #MarineLife #Animals
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Andy Rivkin @asrivkin.bsky.social · 30/03/2024
And here's your periodic reminder that the Planetary Science Journal DART Post-Impact Focus Issue is Open Access and now up to 24 papers: iopscience.iop.org/collections/... We are publishing in other journals as well, but this focus issue is the largest single collection of our papers. 🔭🧪
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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 29/03/2024
A whole new family of sharks! 🧪🦑🌎🦈 www.mdpi.com/2410-3888/9/...
mdpi.com
Dichichthyidae, a New Family of Deepwater Sharks (Carcharhiniformes) from the Indo–West Pacific, with Description of a New Species
The genus Dichichthys was resurrected for five species previously allocated to the genus Parmaturus in the family Pentanchidae. Supraorbital crests on the chondrocranium distinguish Dichichthys from P...
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Nora's Guide to the Galaxy @ngttg.bsky.social · 28/03/2024
SPACE FACTS: DAY 222/365🔭🛰️🧪 There's a lot of dust in space, but it's not like dust on a bookshelf. In general the grains are much smaller than the grains of household dust. Astronomical dust is typically a micron in size or less, while household dust can be as large as 100 microns!
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Queenie's🦩💙🌊🌬️🌸 📸🪶🦉🐝🐞 @queenies.bsky.social · 29/03/2024
Eastern Black Swallowtail Butterfly on a Thistle 🌿📷🌱🌺🐞🐝
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Nora's Guide to the Galaxy @ngttg.bsky.social · 27/03/2024
Using longer wavelengths, like infrared and radio, helps alleviate but does not fully solve the challenge of exploring the Zone of Avoidance.
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Nora's Guide to the Galaxy @ngttg.bsky.social · 27/03/2024
exoplanets 💪
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Nora's Guide to the Galaxy @ngttg.bsky.social · 21/11/2023
SPACE FACTS: DAY 148/365🧪🔭🛰️ The solar wind meets the interstellar medium at a boundary called the heliopause. The heliopause is asymmetrical with a long tail (heliotail). The exact distance to the heliopause varies over time, but in general its closest point in front of the Sun is about 120 AU.
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Nora's Guide to the Galaxy @ngttg.bsky.social · 16/11/2023
SPACE FACTS: DAY 145/365🧪🔭🛰️ Type Ia supernovae are basically always the same because of the Chandrasekhar limit. This means that, with a bit of standardization, scientists know how bright a Type Ia supernova is, making them a powerful tool for measuring cosmic distances!
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Nora's Guide to the Galaxy @ngttg.bsky.social · 14/11/2023
SPACE FACTS: DAY 141/365🧪🛰️🔭 Cryovolcanoes are just like regular volcanoes except instead of molten rocks and magma, they have ice and liquid volatiles. Cryovolcanoes seem to be relatively common on the icy moons and dwarf planets of the solar system!
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Astronomer Royal for Scotland | Catherine Heymans @astroroyalscot.bsky.social · 23/03/2024
The Sherwood Observatory expansion is really taking shape! Deep in Robin Hood 🏹 territory in Nottinghamshire, they are on track to open the doors of their new Science Discovery Centre and Planetarium in Nov this year 🤞🥳 🔭 #scicomm ℹ️: sherwood-observatory.org.uk 📷: GF Tomlinson
An drone image of an exciting building site with a huge skeleton of a dome in the foreground and adjoining building. The footprint of this new science discovery centre and dome completely dwarfs the smaller dome and white building in the background which is the original 50yr old Sherwood observatory.
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Dr Luis Huckstadt @luishuckstadt.bsky.social · 22/03/2024
Happy #InternationalSealDay ! This group of carnivores, seals, sea lions and walruses, display some truly fascinating adaptations and behaviours that allow them to live in water and on land
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Deep-Ocean Stewardship Initiative @deepstewardship.bsky.social · 22/03/2024
A new Deep-Sea Round-Up has surfaced! Join us in discovering research on lanternsharks, #VMEs, FAIR data management practices, updates from ongoing ISA Council meetings, and more opportunities for deep-sea professionals! 👉 www.dosi-project.org/dosi-deep-se... 📷 NOAA Ocean Explorer
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Brian Ricketts @kiwigeolog.bsky.social · 23/03/2024
Mohr circles - a simple graphical system for displaying and calculating normal stress and shear stress in rotating (deforming) structural elements. Here's a brief intro to the method - for undergrad student level Earth sciences + whoever else. www.geological-digressions.com/mohr-circles... ⚒️🧪
geological-digressions.com
Mohr circles and stress transformation
Mohr circles are a simple graphical system for calculating normal stress and shear stress in rotating (deforming) structural elements.
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Sheila Pankhurst @profpankhurst.bsky.social · 23/03/2024
And this moves straight into my top ten favourite beetles of all time 🧪 www.newscientist.com/article/2423...
newscientist.com
Fluffy beetle discovered in Australia may be the world's hairiest
The exceptionally long white hairs on the newly named longhorn beetle Excastra albopilosa may deceive predators into thinking it is covered in fungus
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Eoghan Daltun 🌍 @irishrainforest.bsky.social · 23/03/2024
Every year, all the colonies of wood anemone (along with many other wildflowers) expand their ranges in the rainforest a little more, making each successive spring a revelation. Everyone should be able to experience the joys of rewilding firsthand. 🌏
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Nora's Guide to the Galaxy @ngttg.bsky.social · 22/02/2024
SPACE FACTS: DAY 213/365🔭🧪🛰️ The biggest moon in the solar system—by both mass and radius—is Jupiter's moon Ganymede, the third of the Galilean moons. It's about twice as massive as Earth's moon and is the only moon known to have its own (albeit small) magnetic field. Image: NOAA
A still of a 3D map of Ganymede developed by NOAA from Voyager and Galileo data
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JWST Observer @jwstobserver.bsky.social · 19/03/2024
An improved correction to the MIRI imager long-wavelength count rate loss issue is now available in the latest version of the #JWST Calibration Pipeline. This new correction replaces the one provided in September 2023. Read more: bit.ly/493RpCO
Line drawing of JWST on a background of the Cartwheel Galaxy observed by JWST using MIRI
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Dinosaur Comics! @qwantz.com · 18/03/2024
moderation is MODERATELY boring www.qwantz.com/index.php?co...
Narrator: DAY ONE OF T-REX SPENDING ALL HIS TIME ALONE:
T-Rex: Woo! Blissful isolation!

Narrator: DAY FIFTEEN:
T-Rex: Frig, MAYBE I screwed up??Narrator: DAY SIXTEEN:
Dromiceiomimus: Hey T-Rex! It's been a while!
T-Rex: It sure has! I decided to keep to myself for a while and not see anyone else, and guess what?
Dromiceiomimus: You got sad and weird?
T-Rex: I GOT SAD AND WEIRD!!Utahraptor: Looks like you're a social animal after all!
T-Rex: How did I not KNOW this??

T-Rex: HOW do I keep thinking "I don't need anyone" and then being COMPLETELY SURPRISED when I feel bad after isolation? What is it in my nature that seeks RADICAL INDEPENDENCE while also suffering from AUTOBIOGRAPHICAL AMNESIA??
Utahraptor: Let's discuss it at a nice restaurant!Narrator: BUT THE RESTAURANT IS CROWDED:
T-Rex: This is too many people! I for one am returning to blissful isolation, which has never backfired on me before.
Off panel: T-Rex!
T-Rex: YOU HEARD ME
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Jason Dinh @byjasonpdinh.bsky.social · 18/03/2024
I had the pleasure of speaking with Zainab Salbi this women's history month. in her storied humanitarian career, the daughter of Saddam Hussein's pilot has helped half a million women survivors rebuild their lives after war. now, she's funding environmentalism's fiercest female defenders 🌍
atmos.earth
Out of Saddam Hussein’s Shadow and Into the Climate Frontline
How Zainab Salbi, the daughter of Saddam Hussein's pilot, found herself leading the charge on women-led climate solutions.
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Steve Dudley @stevedudley.bsky.social · 18/03/2024
Just seen this over on the other place. This is so unfortunate and frustrating for FIBO and all involved with the rebuild after the previous ‘new’ obs was destroyed by fire. Wishing them in all the best in sorting this out and 🤞🏼 they’re able to reopen in 2025. #ukbirding
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