Dwayne Day
@kennen11.bsky.social
Historian of military and civil space programs and policy. In my day job I direct studies for NASA on space and aeronautics subjects including planetary science, astrophysics, and Earth science. Work at the National Academy of Science. Trekkie. Dogs.
This is the only Prince I stand by.
February 19, 2026 at 1:34 PM
This is the only Prince I stand by.
My new article is up: thespacereview.com/article/5161/1
February 17, 2026 at 2:49 AM
My new article is up: thespacereview.com/article/5161/1
My new article in The Space Review should be up by this evening. It concerns the IDSCS satellites developed as part of IDCSP--how about those confusing acronyms?
Relatively simple satellites. This followed the cancellation of the complicated, little-known, Advent comsat program.
Relatively simple satellites. This followed the cancellation of the complicated, little-known, Advent comsat program.
February 16, 2026 at 8:36 PM
My new article in The Space Review should be up by this evening. It concerns the IDSCS satellites developed as part of IDCSP--how about those confusing acronyms?
Relatively simple satellites. This followed the cancellation of the complicated, little-known, Advent comsat program.
Relatively simple satellites. This followed the cancellation of the complicated, little-known, Advent comsat program.
My next Space Review article will be on the IDSCS comsats. After the collapse of the ambitious Advent comsat program, the Air Force moved to build a constellation of small, relatively simple comsats in near-GEO orbit.
February 15, 2026 at 5:18 PM
My next Space Review article will be on the IDSCS comsats. After the collapse of the ambitious Advent comsat program, the Air Force moved to build a constellation of small, relatively simple comsats in near-GEO orbit.
I will have at least one (maybe two?) articles in next week's Space Review. The article will be on the development of the IDCSP communications satellites. I acquired a bunch of never-before-published photos. This one was published in 1966, but the rest have not. been published before.
February 14, 2026 at 10:58 PM
I will have at least one (maybe two?) articles in next week's Space Review. The article will be on the development of the IDCSP communications satellites. I acquired a bunch of never-before-published photos. This one was published in 1966, but the rest have not. been published before.
Love comes in many forms on Valentine's Day.
February 14, 2026 at 7:49 PM
Love comes in many forms on Valentine's Day.
This is from a Ukrainian MoD video showing a drone attack on a 70 meter diameter satellite dish in Crimea, Ukraine. The Russians built this dish during the Cold War for deep space communications. They occupy Ukraine, which wanted to take it out for unknown reasons. thespacereview.com/article/5155/1
February 13, 2026 at 2:30 AM
This is from a Ukrainian MoD video showing a drone attack on a 70 meter diameter satellite dish in Crimea, Ukraine. The Russians built this dish during the Cold War for deep space communications. They occupy Ukraine, which wanted to take it out for unknown reasons. thespacereview.com/article/5155/1
Reposted by Dwayne Day
Wow! @collectsideshow.bsky.social just announced a very big (literally) release: the Han Solo: Sorry About the Mess Premium Format Mixed Media Figure!
February 12, 2026 at 8:19 PM
Wow! @collectsideshow.bsky.social just announced a very big (literally) release: the Han Solo: Sorry About the Mess Premium Format Mixed Media Figure!
My new article is up. It is about Ukraine's attack on a space tracking station and the history of that large facility during the Cold War: thespacereview.com/article/5155/1
February 10, 2026 at 1:09 PM
My new article is up. It is about Ukraine's attack on a space tracking station and the history of that large facility during the Cold War: thespacereview.com/article/5155/1
My article on the JUMPSEAT satellites is in the current issue of The Space Review. thespacereview.com/article/5151/1
February 9, 2026 at 10:30 PM
My article on the JUMPSEAT satellites is in the current issue of The Space Review. thespacereview.com/article/5151/1
And just in case you were not aware, in January 2025, Elon was clear that the Moon is a distraction and he was going straight to Mars. And on February 8, 2026, he reversed himself.
February 9, 2026 at 2:23 AM
And just in case you were not aware, in January 2025, Elon was clear that the Moon is a distraction and he was going straight to Mars. And on February 8, 2026, he reversed himself.
Elon Musk (you may recognize him from the Epstein files) has just given up on Mars.
February 9, 2026 at 12:57 AM
Elon Musk (you may recognize him from the Epstein files) has just given up on Mars.
My next article in The Space Review will be about the space tracking and communications facility at Yevpatoriya, Crimea. Here is a map showing a summer 1957 U-2 reconnaissance flight around the Black Sea. Yevpatoriya is at dead center, and did not become interesting to US intelligence until 1961.
February 8, 2026 at 9:00 PM
My next article in The Space Review will be about the space tracking and communications facility at Yevpatoriya, Crimea. Here is a map showing a summer 1957 U-2 reconnaissance flight around the Black Sea. Yevpatoriya is at dead center, and did not become interesting to US intelligence until 1961.
My article on JUMPSEAT is in the current issue of The Space Review. thespacereview.com/article/5151/1
February 7, 2026 at 9:41 PM
My article on JUMPSEAT is in the current issue of The Space Review. thespacereview.com/article/5151/1
Reposted by Dwayne Day
He was hit 3 times in his life by cars. The 3rd time was when I found him.
He is terrified of small spaces like Crates so he couldn't travel anywhere to be adopted.
But then today happened. ❤️
He is terrified of small spaces like Crates so he couldn't travel anywhere to be adopted.
But then today happened. ❤️
February 5, 2026 at 3:08 PM
He was hit 3 times in his life by cars. The 3rd time was when I found him.
He is terrified of small spaces like Crates so he couldn't travel anywhere to be adopted.
But then today happened. ❤️
He is terrified of small spaces like Crates so he couldn't travel anywhere to be adopted.
But then today happened. ❤️
Reposted by Dwayne Day
Furious - rough concept from the archives.
February 2, 2026 at 8:06 PM
Furious - rough concept from the archives.
I have two articles in The Space Review this week. This is the second one: thespacereview.com/article/5148/1
February 3, 2026 at 10:57 PM
I have two articles in The Space Review this week. This is the second one: thespacereview.com/article/5148/1
Reposted by Dwayne Day
1701 and 1976 trading ship's stores of cookies and bourbon.
February 3, 2026 at 4:26 PM
1701 and 1976 trading ship's stores of cookies and bourbon.
My new article is up: thespacereview.com/article/5151/1
February 3, 2026 at 8:34 PM
My new article is up: thespacereview.com/article/5151/1
The Washington Post is owned by Jeff Bezos, who is either the second or third richest man on the planet. The editorial page is now trying to rival The Onion for irony. This is the headline for their editorial this morning.
February 2, 2026 at 5:01 PM
The Washington Post is owned by Jeff Bezos, who is either the second or third richest man on the planet. The editorial page is now trying to rival The Onion for irony. This is the headline for their editorial this morning.
My next article in The Space Review is about the JUMPSEAT signals intelligence satellites. The newly declassified images are great, but also create some mystery. Note the different secondary payloads. The round thing was an infrared sensor, but we don't know the rest.
February 2, 2026 at 1:57 PM
My next article in The Space Review is about the JUMPSEAT signals intelligence satellites. The newly declassified images are great, but also create some mystery. Note the different secondary payloads. The round thing was an infrared sensor, but we don't know the rest.
My second article in The Space Review this week will be about the JUMPSEAT satellites.
February 2, 2026 at 12:03 AM
My second article in The Space Review this week will be about the JUMPSEAT satellites.
I will have two articles in this week's Space Review. One of them is on satellite reconnaissance of China's newest aircraft carriers.
February 1, 2026 at 9:33 PM
I will have two articles in this week's Space Review. One of them is on satellite reconnaissance of China's newest aircraft carriers.
Reposted by Dwayne Day
Yesterday, five-year-old Liam and his dad Adrian were released from Dilley detention center. I picked them up last night and escorted them back to Minnesota this morning.
Liam is now home. With his hat and his backpack.
Liam is now home. With his hat and his backpack.
February 1, 2026 at 3:49 PM
Yesterday, five-year-old Liam and his dad Adrian were released from Dilley detention center. I picked them up last night and escorted them back to Minnesota this morning.
Liam is now home. With his hat and his backpack.
Liam is now home. With his hat and his backpack.