Dan Burns
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the-physics-well.net
Dan Burns
@the-physics-well.net
Physics Educator, Space Enthusiast, Astrophotographer
https://the-physics-well.net/
Reposted by Dan Burns
First Secretary of Defense you could defeat by painting a tunnel on the side of a boulder.
The Secretary of Defense, ladies and gentlemen
November 25, 2025 at 1:55 PM
I use a one shot color camera for comets because it is difficult enough to process without combining images from 4 filters. I am enjoying the simplification of using them for deep sky images too. I took this Horsehead Nebula image waiting for Comet 3I/Atlas to rise. Details In ALT #astrophotography
November 25, 2025 at 3:48 PM
Reposted by Dan Burns
November 25, 2025 at 1:49 PM
I have imaged objects that formed outside our solar system and objects that formed inside it. Comet 3I/Atlas is the first one I have imaged that formed outside our solar system and currently inside ours! You can even see a tiny tail on this interstellar tadpole! Details in ALT. #astrophotography
November 24, 2025 at 7:53 PM
Reposted by Dan Burns
Do you teach physics and need support? Consider applying to the Bauder fund for assistance with special physics teaching activities. Apply by December 1st for consideration at the 2026 AAPT Winter Meeting. Learn more at ow.ly/7y4x50VRp8Q #AAPTFunding #AAPTGrants
November 24, 2025 at 3:01 PM
Reposted by Dan Burns
A quick reminder that seats for our December performances are now on sale. Tell your friends. Tickets at: www.thephysicsshow.com
November 23, 2025 at 10:07 PM
It's been over a month since I had any deep sky images to post. I captured some exposures of the Pleiades Friday night to test out my gear for a try at Comet 3I/Atlas Saturday AM. Low fog spoiled the attempt at the comet, but this image was a nice consolation prize. Details in ALT #astrophotography
November 24, 2025 at 12:42 AM
Reposted by Dan Burns
Today, 62 years later, I again remember that day as an 11 year old in San Jose, California. The weather was similar to todays, a dark ominous overcast. I remember the crazy panicked school kid comments, and going home to the TV coverage. Here are 4 simultaneous photographs of that moment in Dallas.
November 23, 2025 at 5:34 AM
Reposted by Dan Burns
🔭 The Observable Universe

Illustration Credit & Licence: Wikipedia, Pablo Carlos Budassi

apod.nasa.gov/apod/ap25112...
November 23, 2025 at 8:00 AM
Reposted by Dan Burns
If anyone is looking for good presents for the upcoming holidays, check out my most popular product, my aurora borealis "Magic Mug!"

Available on my website: theauroraguy.com/products/aur...
November 22, 2025 at 8:04 AM
Reposted by Dan Burns
TODAY is the last day to take advantage of the extended deadline for #AAPTWM26 Early Bird registration. Don't delay; you must register by 11:59 pm PT to get the discounted rates! ow.ly/grj250WWIyv #AAPTConference #AAPTMeeting #ITeachPhysics
November 21, 2025 at 2:25 PM
Reposted by Dan Burns
Why are planetary scientists, astrobiologists and and SETI scientists so negative (pissed off, even) about Avi Loeb’s repeated claims that 3I/Atlas may be an invading alien spaceship?
🧵
🧪🔭🛸
(1/7)
November 10, 2025 at 11:41 PM
Reposted by Dan Burns
Looks better than starnet I think! No artifacts left behind.

I have a video on StarStaX for star trails if you're curious what I used: youtu.be/WWgfNlSiDT4
StarStaX Tutorial: The EASIEST Way to Create Stunning Star Trails Images
YouTube video by Naztronomy
youtu.be
November 20, 2025 at 8:05 PM
Reposted by Dan Burns
#PPOD: A vast cavity on the Red Planet looks back at ExoMars Trace Gas Orbiter (TGO) with an icy stare. The crater is located in Utopia Planitia, the largest known impact basin in the Solar System, with a diameter of roughly 3,300 km, or twice the size of Earth’s Sahara Desert from north to south. 🧪
November 20, 2025 at 4:03 PM
Reposted by Dan Burns
Reposted by Dan Burns
Did I spend the past few days crafting a question set to accompany episode 1 of The American Revolution? All 112 minutes? One hundred questions? Priced at: Free?

Yes. Tell your history colleagues.

The American Revolution - 1. In Order to Be Free [PBS]
www.teacherspayteachers.com/Product/The-...
The American Revolution - 1. In Order to Be Free [PBS]
Questions to accompany episode 1 of PBS's The American Revolution: A Film by Ken Burns, Sarah Botstein & David Schmidt. Political protest escalates into violence. War gives thirteen colonies a com...
www.teacherspayteachers.com
November 20, 2025 at 2:00 AM
For a little remix of @afreeparticle.com's "Rings of Fire", I 3D printed some magnetic hoops that students could stick to the lockers at any height and distance. For some classes, I gave groups a target time and some I gave a target horizontal distance.
November 20, 2025 at 12:40 AM
Reposted by Dan Burns
Every year the Planetary Society does a voted "best of" for space, and I love voting! Here's how I voted this year:

www.planetary.org/best-of-2025

🪐🔭🛰️🧪
Best of 2025
Cast your vote for the best of space exploration and science in 2025!
www.planetary.org
November 20, 2025 at 12:13 AM
Reposted by Dan Burns
Are you a K-12 teacher planning to attend #AAPTWM26? If so, check out the K-12 Meeting Resources. Learn more ➡ ow.ly/eW6P50XuimK #AAPTMeeting #AAPTConference #ITeachPhysics
November 19, 2025 at 8:18 PM
Reposted by Dan Burns
A huge prominence is slowly lifting off the Sun's northern hemisphere right now - beautiful stuff. The CME will likely not have an Earth-directed component, this is just eye candy. :)
November 19, 2025 at 10:15 PM
Reposted by Dan Burns
Which of my #ITeachPhysics pals will I see at the January meeting? #VegasBaby
Did you miss the Early Bird registration deadline? Good news! The deadline has been extended until Friday, November 21st! Don't delay; must register by 11:59 pm PT! ow.ly/grj250WWIyv #AAPTConference #AAPTMeeting #AAPTWM26 #ITeachPhysics
November 18, 2025 at 12:09 PM
Reposted by Dan Burns
Join us for the next AAPT Virtual Coffee Hour on "Using Generative AI Productively for Teaching and Learning" with presenters Joe Heafner, Brittney VornDick, & Kris Lui on Dec. 9th at 7:30 pm EST. This event is open to the public. ow.ly/3Eqr50Xu6Af #AAPTCoffeeHour #PhysicsEducation #ITeachPhysics
November 19, 2025 at 3:00 PM
Reposted by Dan Burns
I will never forget having to edit Jamal’s final, posthumous piece for the Washington Post, after he was murdered.

He was calling for free expression in the Arab world. You can read it here :

www.washingtonpost.com/opinions/glo...
Opinion | Jamal Khashoggi: What the Arab world needs most is free expression
The Arab world needs a modern version of the old transnational media so citizens can be informed about global events.
www.washingtonpost.com
November 18, 2025 at 6:48 PM
Reposted by Dan Burns
Excited to have published another Blog post with Vernier on our Car Road Safety project!

I’m really proud of the work my students put into this project and hoping this blog post adds more legitimacy to their advocacy as we take it up with the county #iteachphysics

www.vernier.com/blog/real-wo...
Real-World Physics Problems: Using Vernier Video Analysis to Build Evidence for Safer School Zones - Vernier
Every day, my students cross 112th Street outside our high school—a busy, four-lane corridor with a 40 mph speed limit that often feels more like...
www.vernier.com
November 18, 2025 at 5:59 PM
Reposted by Dan Burns
Join us TONIGHT for an AAPT Virtual Coffee Hour on "An Evening with Paul Hewitt," featuring presenters Paul Hewitt and John Suchocki from Conceptual Academy, at 7:30 pm EST. This event is open to the public. ow.ly/fJfn50XbSZy #AAPTCoffeeHour #PhysicsEducation #ITeachPhysics
November 18, 2025 at 2:48 PM