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David S. F. Portree

@dsfpspacefl1ght.bsky.social

3.6K followers 1.3K following 6.7K posts

history guy, science writer, educator, map librarian, archivist, 57 yrs a space exploration nut, ex-NASA, ex-US Geological Survey, now doing local history among the pines in Flagstaff AZ USA Save NASA space science https://spaceflighthistory.blogspot.com

spaceflighthistory.blogspot.com

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David S. F. Portree @dsfpspacefl1ght.bsky.social · 4d

I have restarted work on the GE NEP crewed Mars mission post. After all the turmoil this past month, it's like meeting with an old friend.

My goal is to finish the post by Halloween.

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escapedexplorer.bsky.social @escapedexplorer.bsky.social · 1d

WWII "Friend" poster series from the Allied Forces, originally demonstrating the various Allied forces (British, Australian, Chinese, French, Dutch, etc.) and their appearances

It reads:

"This man is your FRIEND

He fights for FREEDOM"

The image is a sepia/black and white toned image of the Portland Frog protester, simply labelled FROG

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Adam Serwer @adamserwer.bsky.social · 6h

www.wweek.com/culture/2025...

Can you put into words what that purpose is? You and the frog have really become icons of this protest.

There’s been a nice overall whimsy that has shown up. The frog is amazing. We had a bunch of other inflatable people here last night, too. I saw people playing Twister the other day.

What they rely on is fear. So by coming out in an absurdist manner, it speaks to them, to some extent, that we’re actually not that afraid.

It also dismantles their narrative a little bit. When they try to describe this situation as “war-torn,” it becomes much harder to take them seriously when they have to post a video saying [U.S. Secretary of Homeland Security] Kristi Noem is up on the balcony staring over the Antifa Army and it’s, like, eight journalists and five protesters and one of them is in a chicken suit.

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Arizona Indivisible 🇺🇸🌵💪 ❌👑 @azindivisible.bsky.social · 6h

🎯👇

Mike Luckovich @mluckovich.bsky.social · 6h

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The 🫠 ᴘʀᴇᴛᴛʏ #BBCRadio3 🎶 #NowPlaying Bot @bbc3musicbot.bsky.social · 8h

🔊 #NowPlaying on #BBCRadio3:

#ThroughTheNight
- Elisabeth Leonskaja and Mihály Berecz at Wigmore Hall, London

Legendary pianist Elisabeth Leonskaja performs Schubert and Brahms with Mihály Berecz.

▶️ Relisten on BBCSounds

BBC Radio 3 - Through the Night, Elisabeth Leonskaja and Mihály Berecz at Wigmore Hall, London

Legendary pianist Elisabeth Leonskaja performs Schubert and Brahms with Mihály Berecz.

www.bbc.co.uk

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David S. F. Portree @dsfpspacefl1ght.bsky.social · 8h

Welcome to northern AZ! That's a good picture of Mt. Elden.

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CONTACT LIGHT @contactlight.de · 14h

On October 9, 1968, the #Apollo8 Saturn V rocket rolled out to its launch pad. The astronauts scheduled to ride it into space that December - Frank Borman, James A. Lovell and William A. Anders - were on hand to witness the event.

contactlight.de
forallmankind.de

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Kevin M. Gill @kevinmgill.bsky.social · 11h

The comet 81P/Wild on January 2nd 2004 when it was visited by NASA’s Stardust mission. This is a composite of two images showing the comet itself and the surrounding halo.

flic.kr/p/2rymPvE

A gray planetary body with craters, some deep. A halo with jets surrounds it.

NASA/JPL-Caltech/Cornell/Kevin M. Gill

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The Daily Show @thedailyshow.com · 11h

The following is REAL footage from Portland, 2025. Viewer discretion is advised.

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Vincent Ledvina @vincentledvina.bsky.social · 2d

Here is the scale of the coronal hole moving to face Earth in the coming days compared with the size of Earth itself. It's a decently-sized coronal hole, but not exceptionally large by any means. Still, it may spark minor to moderate geomagnetic storming this week! Stay tuned...

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German Aerospace Center (DLR) @dlr-en.bsky.social · 16h

PLATO’s epic journey from Germany 🇩🇪 to @esa.int’s ESTEC! 🚛 🏗️ 🚢

Too big for standard transport, the PLATO space telescope travelled 900km by country road and giant ship. Now at ESTEC, it’s gearing up for testing – including in Europe’s largest vacuum chamber – to prep for its mission to space! 🌌🔭

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David S. F. Portree @dsfpspacefl1ght.bsky.social · 16h

Excellent

David S. F. Portree @dsfpspacefl1ght.bsky.social · 16h

One could almost convince oneself that this is a view of Mars from orbit.

Kevin M. Gill @kevinmgill.bsky.social · 16h

Sol 4683 MAHLI image of a rock that’s been cleared of dust by the DRT brush. Taken by the Mars Curiosity Rover. White balanced color.

flic.kr/p/2rydD5Z

A rock.

NASA/JPL-Caltech/MSSS/Kevin M. Gill

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ESA Exploration @exploration.esa.int · 20h

🛰️ The biggest spacecraft to cruise to Mars will need a powerful push to enter orbit. @esa.int’s Earth Return Orbiter will rely on the thrust of its Orbit Insertion Module to perform this critical manoeuvre.

🎊 A year of quiet triumphs: blogs.esa.int/to-mars-and-...

Orbit Insertion Module primary structure readied for a static load test.

Oxidiser tank integration into the Orbit Insertion Module.

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Mr. Fresh™️ @mrfresh.bsky.social · 1d

Where's Charlie Brown, "It's the Great Pumpkin...."

Del - Martian Observer @martian-observer.art · 1d

Good gourd

Lymington twins squash world record for biggest pumpkin

The giant pumpkin's huge size is confirmed during an annual vegetable-weighing event in Reading.

www.bbc.co.uk

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Cat O'Connell-Cooper @mars-cat.bsky.social · 19h

MSL Curiosity sol_4680 - Mastcam mosaic of the drive direction, looking across the boxworks unit.
NASA/JPL-Caltech/MSSS
(thanks to @paulhammond1.bsky.social )

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Cat O'Connell-Cooper @mars-cat.bsky.social · 19h

MSL Curiosity_sol 4680: mastcam workspace, rover stats and maps, plus navcam mosaic of the landscape around us, and a mastcam mosaic of the road ahead in the drive direction (thanks to @paulhammond1.bsky.social )

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Daniel Pomarède @pomarede.bsky.social · 23h

Perseverance Sol 1647, going uphill on the slopes of the rim of Jezero Crater

📷 areo.info/mars20/ecams... @areoinfo.bsky.social
🗺️ science.nasa.gov/mission/mars...

#Mars 🧪🔭

A map of the rim of Jezero Crater and environs, showing the path followed by the rover and its current position.

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HiRISE Beautiful Mars (NASA) @uahirise.bsky.social · 1d

Tilted Layers in Electris

This is an interesting feature that appears to be a large anticline that is crosscut by wrinkle ridges. Anticlines are folded rock formations that have an upwards convex shape.

uahirise.org/hipod/ESP_07...
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA

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Marwella Zhang @marwellaspaceart.bsky.social · 1d

Waning gibbous 97% on Wednesday evening.

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Gorey Cask of Amontilladoing @coreybrickley.bsky.social · 1d

portland frog wouldve elevated the movie civil war into true cinema

Peter Thal Larsen @petertl.bsky.social · 2d

This photo from Portland by @reuters.com's Carlos Barria 👌

A demonstrator dressed in an inflatable frog costume stands infront of law enforcement officers during a protest outside of the ICE (Immigration and Customs Enforcement) headquarters in south Portland, Oregon, U.S., October 3, 2025. REUTERS/Carlos Barria

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ESA Space Science @science.esa.int · 1d

This new catalogue of dust devils gives us a much clearer picture of the Red Planet’s weather and climate.

But besides pure science, it will also be useful for planning future missions, like dealing with the irksome dust that settles on the solar panels of our robotic rovers.

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JP Collins @profjpc.bsky.social · 1d

“Who” is, objectively, the funniest possible response here

Aaron Rupar @atrupar.com · 1d

Q: Have you given any more thought to possibly suspending habeas corpus?

TRUMP: Suspending who?

Q: Habeas corpus

TRUMP: I don't know. I'd rather leave that to Kristi.

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ouinne @ouinne.bsky.social · 1d

The only correct take on a fundamentally anti-human technology.

Screenshot of David Simon interview
SHAPIRO: OK, so you've spent your career creating television without Al, and I could imagine today you thinking, boy, I wish I had had that tool to solve those thorny problems...
SIMON: What?
SHAPIRO: ...Or saying...
SIMON: You imagine that?
SHAPIRO: ...Boy, if that had existed, it would have screwed me over.
SIMON: I don't think Al can remotely challenge what writers do at a fundamentally creative level.
SHAPIRO: But if you're trying to transition from scene five to scene six, and you're stuck with that transition, you could imagine plugging that portion of the script into an Al and say, give me 10 ideas for how to transition this.
SIMON: I'd rather put a gun in my mouth.

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GHOULLIKEHELLMACHINE @golikehellmachine.com · 1d

had never before considered that the inflatable costumes offer pepper ball protection

Danny K @dannykpolitics.bsky.social · 4d

WATCH: ‘Portland Frog’ pepper balled by ICE agents

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The 🫠 ᴘʀᴇᴛᴛʏ #BBCRadio3 🎶 #NowPlaying Bot @bbc3musicbot.bsky.social · 1d

🔊 #NowPlaying on #BBCRadio3:

#ThroughTheNight
- The Lover's Friend's Love for the Beloved: the BBC Proms 2024

The BBCSO and Dalia Stasevska perform the UK premiere of Julius Eastman's Second Symphony.

▶️ Relisten on BBCSounds

BBC Radio 3 - Through the Night, The Lover's Friend's Love for the Beloved: the BBC Proms 2024

The BBCSO and Dalia Stasevska perform the UK premiere of Julius Eastman's Second Symphony.

www.bbc.co.uk

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