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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 · 7d

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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Daniel Pomarède @pomarede.bsky.social · 10h

"You don't have to claim that they're aliens to make these exciting."

We’re about to find many more interstellar interlopers - here’s how to visit one 🔭🚀🧪
arstechnica.com/features/202... @arstechnica.com #3IATLAS

We’re about to find many more interstellar interlopers—here’s how to visit one

“You don’t have to claim that they’re aliens to make these exciting.”…

arstechnica.com

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scifitoys.co.uk @scifitoys.co.uk · 2h

Original 1980s BBC TV Doctor Who How To Build Your Own DALEK Instructions

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NPR @npr.org · 2h

The Smithsonian's museums and zoo are now closed due to the government shut down. Tours of historic Washington, D.C. sites have been suspended and the National Gallery of Art is also closed.

Smithsonian closes as government shut down continues

The Smithsonian's museums and zoo are now closed due to the government shut down. Tours of historic Washington, D.C. sites have been suspended and the National Gallery of Art is also closed.

n.pr

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Landru79 @landru79.bsky.social · 4h

#NASA's #Mars #Perseverance rover

Sol 1651 Oct. 12, 2025: Left Navigation Camera (Navcam)

mars.nasa.gov/mars2020/mul...

NASA/JPL-Caltech/j. Roger

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Reposted by David S. F. Portree

Landru79 @landru79.bsky.social · 3h

Un recorte

#NASA's #Mars #Perseverance rover

Sol 1651 Oct. 12, 2025: Left Navigation Camera (Navcam)

mars.nasa.gov/mars2020/mul...

NASA/JPL-Caltech/j. Roger

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Reposted by David S. F. Portree

Emily ✨🎃 @emilyoram.bsky.social · 8h

God love Kew, this is incredible

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

NASA Mars Perseverance Rover at Jezero crater
Sol 1,646 (6th October, 2025)

A rock of interest modelling for Mastcam-Z's multispectral filter set

MastCam-Z (left and right)
@ 11:22 / 11:24 lmst
Site 79 / 870
📷 Credits: NASA / JPL-Caltech / ASU / MSSS / Martian-Observer

Left 'eye' image: A partially eroded rock outcrop, worn smooth in places, eaten away and pitted in others.

Right 'eye' image: A partially eroded rock outcrop, worn smooth in places, eaten away and pitted in others.

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CONTACT LIGHT @contactlight.de · 9h

Apollo 7's S-IB in Orbit

The Saturn’s tumbling empty second (S-IB) stage is seen from #Apollo7, following the crew’s rendezvous with it on the afternoon of October 12, 1968.
contactlight.de
forallmankind.de

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Marwella Zhang @marwellaspaceart.bsky.social · 18h

The 70.4% waning moon at 4.48AM (UTC+7) on Sunday.

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Scott Kardel aka Palomar Skies @palomarskies.bsky.social · 15h

Here’s a comet that’s out in the evening sky, the blue-green fuzz ball known as Comet C/2025 R2 (SWAN). 🔭

A telescopic view of stars. There is a comet at center. It looks like a small blue-green ball of fuzz.

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Raider @iwillnotbesilenced.bsky.social · 15h

This Is Fascism

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Mrs. Betty Bowers @mrsbettybowers.bsky.social · 3h

This sadly demented man doesn't realize *he* was president on Jan 6, 2021. Get him in an assisted living facility ASAP.

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The 🫠 ᴘʀᴇᴛᴛʏ #BBCRadio3 🎶 #NowPlaying Bot @bbc3musicbot.bsky.social · 18h

🔊 #NowPlaying on #BBCRadio3:

#ThroughTheNight
- Ton Koopman conducts works by Rameau, Bach, Handel and Haydn

The Berlin Radio Symphony Orchestra under Ton Koopman play Baroque and Classical works.

▶️ Relisten on BBCSounds

BBC Radio 3 - Through the Night, Ton Koopman conducts works by Rameau, Bach, Handel and Haydn

The Berlin Radio Symphony Orchestra under Ton Koopman play Baroque and Classical works.

www.bbc.co.uk

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Scott Kardel aka Palomar Skies @palomarskies.bsky.social · 23h

I was up early this morning to catch the comet (images soon) but I also took a look the the Moon, in the waning gibbous phase, and Jupiter, with its Great Red Spot. 🔭

A telescopic image of the Moon in the waning gibbous phase. Dark lunar "seas" are visible along with many impact craters.

A telescopic image of the planet Jupiter. Two parallel dark bands cut across it. The Great Red Spot is visible in the center of the lower dark band. Jupiter's moon Io is visible just to the right of the right edge of the lower band.

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Indivisible ❌👑 @indivisible.org · 17h

“No, Speaker Johnson — the No Kings rally on October 18 is not a hate America rally. In fact, it’s quite the contrary: It’s a love America rally.” #NoKings

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Raider @iwillnotbesilenced.bsky.social · 16h

Portland 🔥

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Kevin M. Gill @kevinmgill.bsky.social · 17h

Mars on February 24 2005, from the UAE’s Hope Mission.

flic.kr/p/2ryorhM

A planet without any Fuddruckers. None! Not a single one!

CU/LASP EMM/EXI ITF/Kevin M. Gill

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Landru79 @landru79.bsky.social · 1d

#NASA's #Mars #Perseverance rover

Sol 1649 Oct. 10, 2025: Left Navigation Camera (Navcam)

mars.nasa.gov/mars2020/mul...

NASA/JPL-Caltech/j. Roger

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Reposted by David S. F. Portree

Laura Jedeed @laurajedeed.bsky.social · 2d

Portland Frog gets it

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Terry-Lee Marttinen @tlmarttinen.bsky.social · 1d

😄

Corodon @thecorodon.bsky.social · 1d

Exodus 8:2
"If you refuse to let them go, I will send a plague of frogs on your whole country."

Reverend Jesus "H" Christ @reverendjesus.com · 2d

Blessed are the frogs, for they keep making authoritarians look incredibly stupid

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EveryLibrary @everylibrary.bsky.social · 1d

It's Banned Books Week!

Sign the petition against book bans at www.bookbanpetition.us

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CONTACT LIGHT @contactlight.de · 1d

October 11, 1968 - #Apollo7 is launched from Cape Kennedy and was the first mission in the United States' Apollo program to carry a crew into space. It was also the first U.S. spaceflight to carry astronauts since the flight of Gemini XII in November 1966.
forallmankind.de

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CONTACT LIGHT @contactlight.de · 1d

#Apollo7 Saturn IB blasting off from LC-34 on October 11, 1968, while a Saturn V undergoes testing at LC-39A to support the Apollo 8 mission later the same year.
contactlight.de
forallmankind.de

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CONTACT LIGHT @contactlight.de · 1d

October 11, 1968 Launch Day
First manned test flight of the CSM #Apollo7 was the only manned Apollo mission launched on a Saturn 1-B rocket and from pad 34 at Cape
Kennedy.
Apollo 7 was the first manned test of the Command and Service Module

contactlight.de

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David S. F. Portree @dsfpspacefl1ght.bsky.social · 1d

If you don't write it I will.

In the future, when people look back at our time, maybe they'll read your book to get a feel for it.