Mark Marley
@markmarley.bsky.social
Personal account. Substellar science since the 80s.
Working on the formal obituary for Uwe Fink and came across this in his phot collection. From when our building had a more open floor plan.
February 8, 2026 at 11:39 PM
Working on the formal obituary for Uwe Fink and came across this in his phot collection. From when our building had a more open floor plan.
These marbles at the gem show would make a good scale model of the solar system.
February 7, 2026 at 11:33 PM
These marbles at the gem show would make a good scale model of the solar system.
Me: “I’ve seen enough artistic dancers, I’ll be in the other room.”
Spouse a few minutes later: “you need to come back”
Spouse a few minutes later: “you need to come back”
February 7, 2026 at 4:48 AM
Me: “I’ve seen enough artistic dancers, I’ll be in the other room.”
Spouse a few minutes later: “you need to come back”
Spouse a few minutes later: “you need to come back”
A rim walk. Thought you would appreciate @natickbobcat.bsky.social
February 5, 2026 at 12:58 AM
A rim walk. Thought you would appreciate @natickbobcat.bsky.social
This chart lists the meteorite dealers. The motels are low stress since the rooms have been transformed to little shops and you just wander around.
preview.redd.it/tucson-gem-s...
preview.redd.it/tucson-gem-s...
February 1, 2026 at 3:12 PM
This chart lists the meteorite dealers. The motels are low stress since the rooms have been transformed to little shops and you just wander around.
preview.redd.it/tucson-gem-s...
preview.redd.it/tucson-gem-s...
I am sorry to share the news of the passing of LPL Professor Emeritus Uwe Fink. Uwe was a stalwart member of LPL, joining the lab back in 1967. He worked on many topics, especially spectroscopic studies of planets, satellites, nebulae, asteroids, and comets.
January 29, 2026 at 2:46 AM
I am sorry to share the news of the passing of LPL Professor Emeritus Uwe Fink. Uwe was a stalwart member of LPL, joining the lab back in 1967. He worked on many topics, especially spectroscopic studies of planets, satellites, nebulae, asteroids, and comets.
An important part of our atmospheric and evolutionary modeling is to benchmark against objects and learn from what the models do and do not do well. This new paper by Mader et al. takes a current look at our cloudy models. arxiv.org/abs/2601.18866
🔭
🔭
January 28, 2026 at 10:06 PM
An important part of our atmospheric and evolutionary modeling is to benchmark against objects and learn from what the models do and do not do well. This new paper by Mader et al. takes a current look at our cloudy models. arxiv.org/abs/2601.18866
🔭
🔭
The bobcat does not need to explain the path it chooses.
January 28, 2026 at 4:38 PM
The bobcat does not need to explain the path it chooses.
Crazy that 60% of the people living in AZ weren’t born here. My paternal grandmother was born here around 1890 and so the oral history has pretty much seen it all.
January 27, 2026 at 2:46 PM
Crazy that 60% of the people living in AZ weren’t born here. My paternal grandmother was born here around 1890 and so the oral history has pretty much seen it all.
You know you are old when a pay phone is “for display only”.
January 19, 2026 at 6:32 PM
You know you are old when a pay phone is “for display only”.
In important news I installed a WiFi hose valve to make sure I can step in if the water gets too low. Can’t have any thirsty bobcats. (Before it was on a fixed timer)
January 17, 2026 at 5:42 PM
In important news I installed a WiFi hose valve to make sure I can step in if the water gets too low. Can’t have any thirsty bobcats. (Before it was on a fixed timer)
This is Mesquite mistletoe, here growing on a Palo Verde instead of a Mesquite. It’s an important part of the ecosystem and some birds specialize in eating the berries from these.
January 17, 2026 at 3:04 PM
This is Mesquite mistletoe, here growing on a Palo Verde instead of a Mesquite. It’s an important part of the ecosystem and some birds specialize in eating the berries from these.
CVS drive through. Giving Star Trek vibes.
January 16, 2026 at 12:49 AM
CVS drive through. Giving Star Trek vibes.
UA’s Chad Bender presents LFAST.
January 7, 2026 at 10:49 PM
UA’s Chad Bender presents LFAST.
4 new telescopes and a new opportunity to build teams.
January 7, 2026 at 10:15 PM
4 new telescopes and a new opportunity to build teams.
Standing room only for the Schmidt Sciences presentation at AAS.
January 7, 2026 at 9:55 PM
Standing room only for the Schmidt Sciences presentation at AAS.
Somehow the University dropped the ball on shipping our AAS tables and branded backdrops so our booth is pretty bare. But at least we are across the way from Startorialist. Come by for some mission posters.
January 4, 2026 at 10:05 PM
Somehow the University dropped the ball on shipping our AAS tables and branded backdrops so our booth is pretty bare. But at least we are across the way from Startorialist. Come by for some mission posters.
Sonogram of Great Horned Owl hoots look like little owl ear tufts. App is Cornell’s BirdNET.
December 30, 2025 at 2:15 PM
Sonogram of Great Horned Owl hoots look like little owl ear tufts. App is Cornell’s BirdNET.
On 3/17/23 daughters were randomly visiting Tucson and said, “today is 1st day of Taylor Swift’s new tour in Phoenix and we can get tickets for not crazy prices, we want to drive up, can we take the car?”. Of course we said yes and my wife also went up. I passed and thus missed seeing a phenomenon.
December 29, 2025 at 3:08 AM
On 3/17/23 daughters were randomly visiting Tucson and said, “today is 1st day of Taylor Swift’s new tour in Phoenix and we can get tickets for not crazy prices, we want to drive up, can we take the car?”. Of course we said yes and my wife also went up. I passed and thus missed seeing a phenomenon.
It’s a tourism photo day in SF.
December 27, 2025 at 7:49 PM
It’s a tourism photo day in SF.
Just caught @bmacastro.bsky.social explaining the Lick damage. Loved the mention of the steampunk look and inlaid wooden floors.
December 27, 2025 at 4:41 PM
Just caught @bmacastro.bsky.social explaining the Lick damage. Loved the mention of the steampunk look and inlaid wooden floors.
Busy solstice. I don’t think I’ve seen 3 adults before (did once see a mom and 3 offspring).
December 21, 2025 at 4:27 PM
Busy solstice. I don’t think I’ve seen 3 adults before (did once see a mom and 3 offspring).
Here is a Waymo paralyzed in the left turn lane. The driver behind just gave up and pulled around to the left of it to make his left turn.
December 21, 2025 at 5:08 AM
Here is a Waymo paralyzed in the left turn lane. The driver behind just gave up and pulled around to the left of it to make his left turn.
I just want to know where the dolphins built their radio antenna. Maybe in orbit?
December 20, 2025 at 5:54 AM
I just want to know where the dolphins built their radio antenna. Maybe in orbit?