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Posts by Leigh 🌠

This is why we fund scientists to study things like oyster slobber even if you don’t think it sounds important

6 months ago 16909 6387 165 94
A photograph of a black cat sleeping on her side with her front paws stretched out in front of her. One paw is turned towards the camera, revealing her black toe beans. She is laying on a black blanket with white constellations on it.

A photograph of a black cat sleeping on her side with her front paws stretched out in front of her. One paw is turned towards the camera, revealing her black toe beans. She is laying on a black blanket with white constellations on it.

Hey Bluesky, it's been a minute. I've been staying off of social media for my general health and well-being. I hope everyone's well. Here's Karliah for cat tax.

7 months ago 2 0 1 0
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I have amazing #ITeachPhysics and #TTRPG news to share! Adventures with Emmy (AwE), a STEM education tabletop roleplaying game, has been AWARDED FUNDING by the National Science Foundation.

In AwE, mathematician and physicist Emmy Noether invites you to learn science by exploring imaginative worlds.

7 months ago 117 37 8 10

The Dirac Delta Function

♾️🎢🧮⚛️

1 year ago 46 7 3 2
Interacting galaxies from the Arp-Madore catalog, viewed with the Hubble Space Telescope.

Interacting galaxies from the Arp-Madore catalog, viewed with the Hubble Space Telescope.

ARP! ARP! ARP! ☄️🔭 arxiv.org/abs/2509.09011

7 months ago 131 22 7 3
I didn't want to miss getting a nice image of one of my all-time favourite nebulae, the Rosetta nebula, before it was too late in the season and moved into the west. 

This image combines 15 x 60s exposures in each color channel, using broad-band filters B (blue), G (green) and R (red). I also tried to achieve natural colours (i.e. the colours we would see with our eyes).

The data were taken at 10:30pm, Sunday 15 March 2021, from Siding Spring Observatory (near Coonabarabran, NSW, Australia).

I used a ZWO ASI1600MM-Pro at -20C with the ZWO 2" BGR filters, my new 7x2" ZWO filter wheel, a Skywatcher Black Diamond 80mm with an Orion x0.8 focal reducer (effective focal length 480 mm, f/6). I used the ZWO ASIAir to control the camera, filter wheel, the mount (Skywatcher AZ-EQ6) and the guiding system (ASI120MM + Orion 50mm finderscope).

The data have been processed with SIRIL, then converted into TIF using Fits Liberator using a logarithmic stretch, and finally combined in Photoshop to get the colours and the final details. Darks, flats and biases were used.

I usually try to get at least 30-40 frames per filter, but as I said this was a compromise to get a nice colour shot of this nebula before it set, and hence I took 15 exposures per filter, and only 60 seconds each (and the highest gain in the camera, hence the noise that can be seen when zooming in). Otherwise I would have taken ~5 minute exposures with a lower gain and 40 of them. 

In any case, I hope you li...

I didn't want to miss getting a nice image of one of my all-time favourite nebulae, the Rosetta nebula, before it was too late in the season and moved into the west. This image combines 15 x 60s exposures in each color channel, using broad-band filters B (blue), G (green) and R (red). I also tried to achieve natural colours (i.e. the colours we would see with our eyes). The data were taken at 10:30pm, Sunday 15 March 2021, from Siding Spring Observatory (near Coonabarabran, NSW, Australia). I used a ZWO ASI1600MM-Pro at -20C with the ZWO 2" BGR filters, my new 7x2" ZWO filter wheel, a Skywatcher Black Diamond 80mm with an Orion x0.8 focal reducer (effective focal length 480 mm, f/6). I used the ZWO ASIAir to control the camera, filter wheel, the mount (Skywatcher AZ-EQ6) and the guiding system (ASI120MM + Orion 50mm finderscope). The data have been processed with SIRIL, then converted into TIF using Fits Liberator using a logarithmic stretch, and finally combined in Photoshop to get the colours and the final details. Darks, flats and biases were used. I usually try to get at least 30-40 frames per filter, but as I said this was a compromise to get a nice colour shot of this nebula before it set, and hence I took 15 exposures per filter, and only 60 seconds each (and the highest gain in the camera, hence the noise that can be seen when zooming in). Otherwise I would have taken ~5 minute exposures with a lower gain and 40 of them. In any case, I hope you li...

A quick view of the Rosetta nebula - From Ángel López-Sánchez - https://flic.kr/p/2kLxJKy

9 months ago 295 36 7 1

this is the time for scifi fans to exercise the ultimate depth and breadth of their creativity

make them shut down the hotline

use all your best Borg jokes

9 months ago 5788 2440 306 249

The full ruling explaining why NIH grant cuts are illegal came out today.

It's just as blistering as the judge's oral remarks. And it uncovers fresh details in DOGE's role orchestrating the cuts — and on the cuts at Columbia.

Here are my top highlights from the 103-page ruling. 🧵

9 months ago 1434 648 13 29
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Season 5, Ep. 30: Gravity Assist: How We Make Webb (and Hubble) Images - NASA The world will get a first glimpse of the universe as never before when the first images from the James Webb Space Telescope come out on July 12. And this is only the beginning — the telescope will de...

This is an interview on the topic for Hubble and Webb, with Joe DePasquale at @stsci.edu , who is one of the best at this (digitally, present-day) www.nasa.gov/podcasts/gra... 🔭

9 months ago 10 2 2 0

Recently turned in a deeply researched draft of a book on What AI Actually Is and reader, this is 100% correct

9 months ago 1679 409 36 8
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Mr. Abrego's Account of Torture at CECOT in El Salvador Mr. Abrego has filed an amended complaint asking the court to declare the government's actions unlawful and to order his release. He describes his torture in El Salvador in the complaint.

NEW: Read Mr Abrego's account of unthinkable torture inside CECOT prison in El Salvador. My latest: content warning: www.muellershewrote.com/p/mr-abregos...

9 months ago 12088 6150 616 518
A starfield is shown with many stars and several faint light brown dust clouds. In the center is a large cloud with brown dust and gas shells lined in blue. Please see the explanation for more detailed information.

A starfield is shown with many stars and several faint light brown dust clouds. In the center is a large cloud with brown dust and gas shells lined in blue. Please see the explanation for more detailed information.

🔭 Between Scylla and Charybdis: A Double Cosmic Discovery

Image Credit: M. Drechsler, Y. Sainty, A. Soto, N. Martino, L. Leroux-Gere, S. Khallouqui, & A. Kaeouach; Text: Ogetay Kayali (Michigan Tech U.)

apod.nasa.gov/apod/ap25060...

10 months ago 150 37 2 3
HOMEWORK MACHINE

The Homework Machine, oh the Homework Machine
Most perfect contraption that's ever been seen. 
Just put in your homework, then drop in a dime,
Snap on the switch, and in ten seconds' time,
Your homework comes out, quick and clean as can be.
Here it is — "nine plus four?" and the answer is "three."
Three?
Oh me ...
I guess it's not as perfect
As I thought it would be.

HOMEWORK MACHINE The Homework Machine, oh the Homework Machine Most perfect contraption that's ever been seen. Just put in your homework, then drop in a dime, Snap on the switch, and in ten seconds' time, Your homework comes out, quick and clean as can be. Here it is — "nine plus four?" and the answer is "three." Three? Oh me ... I guess it's not as perfect As I thought it would be.

shel silverstein on the LLM, 1981

10 months ago 1854 689 10 15

As we condemn the Trump admin for this plan, I hope we also reflect on the many presidential administrations before him (including Democratic presidents) who had the opportunity to fully close the stain on American modern history that is Guantanamo and that opted not to.

10 months ago 64 22 3 1

If you ever benefitted from seasame street, arthur, between the lions, maya and miguel, zaboomafoo, reading mother fuckin rainbow, or DOZENS of other educational/formative shows, you can send an email

10 months ago 85 68 1 1
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Hello. I live in Los Angeles. The president is lying.

10 months ago 46914 14504 2955 1367
hundreds of. protestors approaching federal building with ice

hundreds of. protestors approaching federal building with ice

Back to the federal building, the protestors have exploded in numbers and are approaching the building again

This is WAY BIGGER than any previous protest. The national guard is instigating far LARGER of a response and the feds are LOSING.

10 months ago 2345 578 10 40

Anthony Bourdain died seven years ago today.

I think his legacy to Americans was to be a good guest, to appreciate culture not co-opt it, and that we need to be less afraid of lifestyles unlike our own. He was an ambassador to embracing equal but different.

More people could stand to ponder this.

10 months ago 1543 321 48 26
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Goooooood afternoon, Anchorage! It was nice waking up to a view of the mountains this morning. I'll be at #AAS246 this week - feel free to say hello if you see me! Can't possibly miss my bright purple hair. 😂

10 months ago 1 0 0 0
Savudrija lighthouse shines along the coast near the northern end of the Istrian peninsula in this well-composed night skyscape. A navigational aid for sailors on the Adriatic Sea, the historic lighthouse was constructed in the early 19th century. But an even older aid to navigation shines in the sky above, Polaris, alpha star of the constellation Ursa Minor and also known as the North Star. In this scene Polaris forms the shortest bright arc near the North Celestial Pole, the extension of Earth's axis of rotation into space. Of course, the North Celestial Pole lies exactly at the center of all the concentric startrails. The composite image is a digital stack of 400 exposures, each 30 seconds long, taken with camera and tripod fixed to a rotating planet.

Savudrija lighthouse shines along the coast near the northern end of the Istrian peninsula in this well-composed night skyscape. A navigational aid for sailors on the Adriatic Sea, the historic lighthouse was constructed in the early 19th century. But an even older aid to navigation shines in the sky above, Polaris, alpha star of the constellation Ursa Minor and also known as the North Star. In this scene Polaris forms the shortest bright arc near the North Celestial Pole, the extension of Earth's axis of rotation into space. Of course, the North Celestial Pole lies exactly at the center of all the concentric startrails. The composite image is a digital stack of 400 exposures, each 30 seconds long, taken with camera and tripod fixed to a rotating planet.

🔭 Savudrija Star Trails

Image Credit & Copyright: Branko Nadj

apod.nasa.gov/apod/ap25060...

10 months ago 133 31 1 3

👇👇👇
[Alt-text] post reads “If you are National Guard or Active Duty military and you are being ordered to violate the Constitutional rights of US citizens then this is the number to the GI Rights Hotline. There is support, you don't have to go through with it. tel: 1-877-447-4487

10 months ago 805 536 4 14
If you are National Guard or Active Duty military and you are being ordered to violate the Constitutional rights of US citizens then this is the number to the Gl Rights Hotline. There is support, you don't have to go through with it. tel:1-877-447-4487

If you are National Guard or Active Duty military and you are being ordered to violate the Constitutional rights of US citizens then this is the number to the Gl Rights Hotline. There is support, you don't have to go through with it. tel:1-877-447-4487

10 months ago 2573 1501 11 29

Just like in the parks, safety comes first.
- Stay with your group
- Follow the signs (or in this case, the facts)
- Leave no one behind
- Document everything
- Don’t engage alone

10 months ago 11758 2941 110 61
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Meme:
Drawing of a baby rabbit wearing an armoured helmet and leaf armour shawl, carrying a book under one arm, holding a spear with a teapot, hooked onto the metal spearhead that is trident shaped.

Meme: Drawing of a baby rabbit wearing an armoured helmet and leaf armour shawl, carrying a book under one arm, holding a spear with a teapot, hooked onto the metal spearhead that is trident shaped.

Good morning rebels...

10 months ago 20261 3544 184 105

Every person on Bluesky should know:
* Every post on Bluesky is PUBLIC forever
* Every post on Bluesky is archived by ICE, NSA, and many other agencies
* Even if you delete a post, it’s already been captured
* Judges don’t care if you were “kidding” or being ironic

www.404media.co/the-200-site...

1 year ago 23728 12635 1251 1127
ICE ALERT
On 6/8/25 ICE may be planning to raid the following areas:
• 5th & Washington Ave
• 7th & Snyder Ave
• 5th & McKean/Wolf
• Chinatown
Look out for your neighbors!
We keep us safe!

ICE ALERT On 6/8/25 ICE may be planning to raid the following areas: • 5th & Washington Ave • 7th & Snyder Ave • 5th & McKean/Wolf • Chinatown Look out for your neighbors! We keep us safe!

PHILLY:

10 months ago 1000 438 13 10

Fascism

10 months ago 117 34 1 0

The federal government is taking over the California National Guard and deploying 2,000 soldiers in Los Angeles — not because there is a shortage of law enforcement, but because they want a spectacle.

Don't give them one.

Never use violence. Speak out peacefully.

10 months ago 23745 6894 2495 796

“Get it all on record now - get the films - get the witnesses -because somewhere down the road of history some bastard will get up and say that this never happened”.
—Dwight D. Eisenhower

10 months ago 269 55 2 1