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Posts by John Lewis

the Roman field of view over the orion nebula. almost the entire orion nebula

the Roman field of view over the orion nebula. almost the entire orion nebula

Excited the Nance Grace Roman Space Telescope is Complete!?

Pan + Zoom see how much of your favorite object will be captured within a single Roman field of view

projects.cosmicds.cfa.harvard.edu/roman-view-f...

#astronomy #dataviz

1 day ago 6 1 0 0
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The surprising origin of 4 features that superglue kids — and adults — to screens Taken together, these four features can create a trancelike state that can keep us stuck on social media apps or video games for hours. Children are particularly vulnerable.

Taken together, these four features can create a trancelike state that can keep us stuck on social media apps or video games for hours. Children are particularly vulnerable. n.pr/4mH6i6s

2 days ago 351 138 8 32
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Baseline Does Not Really Cover Baseline Support Yeah, that’s not exactly a helpful title. The relatively new Web Platform Baseline offering does not track browser support for accessibility features built into the web platform. If you need to unders...

If you need #accessibility support—for compliance reasons or otherwise, and I hope that you do, keep in mind that "Web Platform Baseline offering does not track browser support for accessibility features built into the web platform." adrianroselli.com/2023/12/base... @aardrian.bsky.social

#a11y

3 days ago 3 1 1 1

Neutrinos aren’t tunneling

they just have very little business with other matter

Atomic nuclei in stellar cores are quantum tunneling when they overcome the coulomb barrier

It’s different!

1 week ago 793 50 8 2
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Claude Mythos: Finance ministers and top bankers raise serious concerns about AI model Experts say Mythos potentially has an unprecedented ability to identify and exploit cyber-security weaknesses.

1. say your new model is a threat to humanity
2. free marketing 🌠

6 days ago 29 7 2 1

FACT: Social Security has a fraud rate of 0.00625%, which is FAR lower than private-sector retirement programs.

6 days ago 955 297 8 4
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$30m an hour: big oil reaping huge war windfall from consumers, analysis finds Exclusive: Climate action blockers including Saudi Arabia, Russia and major fossil fuel firms set to make extra $234bn by end of 2026

Guess who's winning the war? "The world’s top 100 oil and gas companies banked more than $30m every hour in unearned profit in the first month of the US-Israeli war in Iran..."

6 days ago 854 463 35 22
Video

Happy Tax Day, New York. We’re taxing the rich.

1 week ago 36293 7635 820 1583
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AI learns language from skewed sources. That could change how we humans speak – and think | Bruce Schneier Large language models aren’t trained on real-life conversations. As we encounter their language, it could affect our own

Oh:

A 2022 study found that children in households that used voice commands with tools like Siri and Alexa became curt when speaking with humans, often calling out “Hey, do X” and expecting obedience, especially from anyone whose voice resembled the default-female electronic voices.

1 week ago 2197 840 71 160

Why aren't students protesting?

1 week ago 2092 636 11 0
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Days after the president blasted the Pope as “weak on Crime,” his own DOJ moved to dismiss criminal cases against individuals convicted of conspiring to use force to prevent the peaceful transfer of power.

Some of the conduct for which Rhodes was convicted:

www.lawfaremedia.org/article/oath...

1 week ago 2192 965 73 47
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Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies | Fortune Millions were spent putting laptops in every student’s hands. Now schools want them back as technology in the classroom is turning out not to be the miracle solution it was sold as.

It’s almost like WE ALL SAID THIS WOULD HAPPEN fortune.com/2026/04/10/a...

1 week ago 1515 413 16 42

🏺 Q for researchers - Looking for the oldest *deep cave* access in H sapiens; so far, I'm finding much older activity in #Neanderthals (300 m deep at +170,000 ka at Bruniquel, and up to 500m in another undated site), but willing to be proven wrong...

1 week ago 20 11 3 0

Official splashdown time: 7:07:27 p.m. Central time

1 week ago 58 8 1 3
image of integrity splashdown at 7:07pm central

image of integrity splashdown at 7:07pm central

Artemis II Integrity Splashdown!!!

1 week ago 3 0 0 0
The current location of Artemis II (at about 4:15pm) is in red, and we see it's trajectory to Earth, visualized in WorldWideTelescope

The current location of Artemis II (at about 4:15pm) is in red, and we see it's trajectory to Earth, visualized in WorldWideTelescope

an approximate re-entry location for Artemis II

an approximate re-entry location for Artemis II

The 🌕 🚀 Artemis II astronauts 👩‍🚀👩‍🚀👩‍🚀👩‍🚀 are on their way back 🌎!!

Keep exploring ! projects.cosmicds.cfa.harvard.edu/artemis-ii/

1 week ago 0 0 0 0
The Artemis II trajectory in an Earth-centered frame. It makes a figure-8 like shape, with a tight turn around the Moon

The Artemis II trajectory in an Earth-centered frame. It makes a figure-8 like shape, with a tight turn around the Moon

The Artemis II trajectory in an Moon-centered frame. It makes a squiggly line, but unlike the other representation, this show a calm turn, a nudge from the moon returning the astronauts back to Earth

The Artemis II trajectory in an Moon-centered frame. It makes a squiggly line, but unlike the other representation, this show a calm turn, a nudge from the moon returning the astronauts back to Earth

We are used to seeing the #Artemis II path in an 🌎-centered reference frame, which makes it look like make a hairpin turn at the moon!
But in a 🌘-centered frame, we see it's more of a nudge, pulling the astronauts back to 🌎! #astronomy #moon

Explore👩‍🚀: projects.cosmicds.cfa.harvard.edu/artemis-ii

1 week ago 10 3 2 0
Video

The #Artemis II trajectory with respect to the Moon! #dataviz 📊

interactive🔗 projects.cosmicds.cfa.harvard.edu/artemis-ii

1 week ago 2 1 0 1
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Artemis II Trajectory Explore the Artemis II trajectory in WorldWide Telescope.

Well, we (@cosmicds.bsky.social), turned my little viz demo into a real thing.

Perspective is important for drawing orbits 💫! Explore how a the shift in reference frame changes how the #Artemis II orbit is drawn! #astronomy #dataviz #moon

1 / 2 🧵
projects.cosmicds.cfa.harvard.edu/artemis-ii/

1 week ago 10 4 1 0
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🧐Wondering how you, you or your kids' schools, or your company can collaborate with NASA experts? There's a free online workshop for that! Tune in next Tuesday, April 14, to discover resources, integrate space & Earth science programming, and create lasting connections with local educators.

(1/3)

1 week ago 4 2 1 0
RFK Jr.’s CDC Delays Report Proving the Covid Vaccine Worked Anti-vax nonsense has infiltrated every corner of America’s public health agencies.

Wow, great news: the CDC has a study proving COVID vaccines slashed hospitalizations by 55%. Bad news: RFK Jr.’s team killed it before publication because facts were inconvenient. They are literally hiding data that could save your life.

#USDemocracy
#Pinks

newrepublic.com/post/208886/...

1 week ago 1533 830 25 12
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Yeah, it's a great question. you can sort of see it in the attached image.

It's not an option in the interactive because the engine behind this, WorldWideTelesope, does not currently allow free-rotation so you cannot get the top down view one would want.

1 week ago 1 0 0 0
Video

The #Artemis II trajectory with respect to the Moon! #dataviz 📊

interactive🔗 projects.cosmicds.cfa.harvard.edu/artemis-ii

1 week ago 2 1 0 1
A high-quality digital interface for an interactive educational tool titled "The Sun's Seasonal Journey," presented by Cosmic Data Stories and WorldWide Telescope.

A high-quality digital interface for an interactive educational tool titled "The Sun's Seasonal Journey," presented by Cosmic Data Stories and WorldWide Telescope.

Hello, sunshine! Today is the Vernal Equinox, the spring's official astronomical start.

Once you’ve enjoyed a moment of sunshine today, head over to our Seasons Data Story to explore the science of the sun’s position all year long. Check it out: projects.cosmicds.cfa.harvard.edu/seasons/

1 month ago 0 1 0 0

That is a perfect analogy!

1 week ago 2 0 0 0
The Artemis II trajectory in an Earth-centered frame. It makes a figure-8 like shape, with a tight turn around the Moon

The Artemis II trajectory in an Earth-centered frame. It makes a figure-8 like shape, with a tight turn around the Moon

The Artemis II trajectory in an Moon-centered frame. It makes a squiggly line, but unlike the other representation, this show a calm turn, a nudge from the moon returning the astronauts back to Earth

The Artemis II trajectory in an Moon-centered frame. It makes a squiggly line, but unlike the other representation, this show a calm turn, a nudge from the moon returning the astronauts back to Earth

We are used to seeing the #Artemis II path in an 🌎-centered reference frame, which makes it look like make a hairpin turn at the moon!
But in a 🌘-centered frame, we see it's more of a nudge, pulling the astronauts back to 🌎! #astronomy #moon

Explore👩‍🚀: projects.cosmicds.cfa.harvard.edu/artemis-ii

1 week ago 10 3 2 0
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The Artemis II trajectory in an Earth-centered frame. It makes a figure-8 like shape, with a tight turn around the Moon

The Artemis II trajectory in an Earth-centered frame. It makes a figure-8 like shape, with a tight turn around the Moon

The Artemis II trajectory in an Moon-centered frame. It makes a squiggly line, but unlike the other representation, this show a calm turn, a nudge from the moon returning the astronauts back to Earth

The Artemis II trajectory in an Moon-centered frame. It makes a squiggly line, but unlike the other representation, this show a calm turn, a nudge from the moon returning the astronauts back to Earth

We are used to seeing the #Artemis II path in an Earth-centered frame of reference, which makes it appear like they fly to the moon and make a hairpin turn back!

If we look at the a Moon-centered frame, we see that it's not a hairpin turn, but more of a nudge, pulling the astronauts back to earth!

1 week ago 5 1 2 0
Preview
Artemis II Trajectory Explore the Artemis II trajectory in WorldWide Telescope.

Well, we (@cosmicds.bsky.social), turned my little viz demo into a real thing.

Perspective is important for drawing orbits 💫! Explore how a the shift in reference frame changes how the #Artemis II orbit is drawn! #astronomy #dataviz #moon

1 / 2 🧵
projects.cosmicds.cfa.harvard.edu/artemis-ii/

1 week ago 10 4 1 0
Preview
Blacksky Algorithms' Policy Towards Agentic Coding We want to be specific when we talk about how Blacksky uses AI.

As promised, we’ve created a policy document outlining our thoughts on AI and agentic coding (AI for software development). We’re releasing a vote later this week for Blacksky community members to offer their feedback. We look forward to hearing from you all.

2 weeks ago 188 81 18 41

thought i would try my hand at this view*🙃 and it's pretty ok.
johnarban.github.io/wwt-playground/artemis/ (interactive)

*doesn't use the actual Artemis coordinates, due to some coordinate issues

tech: WorldWideTelescope, @cosmicds.bsky.social toolkit, @vuejs.org

#webdev #dataviz #astronomy

2 weeks ago 9 0 0 0