Mark Marley
@markmarley.bsky.social
Personal account. Substellar science since the 80s.
This cactus wren is using the feather bonanza to construct its nest. Can’t get more circle of life than that.
November 11, 2025 at 4:03 PM
This cactus wren is using the feather bonanza to construct its nest. Can’t get more circle of life than that.
This weekend I read that the entire Breaking Bad franchise is estimated to have had $385M in economic impact for the state of NM and this is celebrated by a statue at the ABQ convention center. Meanwhile University of Arizona space science has an economic impact of $560M on our state every year.
November 10, 2025 at 11:45 PM
This weekend I read that the entire Breaking Bad franchise is estimated to have had $385M in economic impact for the state of NM and this is celebrated by a statue at the ABQ convention center. Meanwhile University of Arizona space science has an economic impact of $560M on our state every year.
I don’t begrudge the hawk its dinner but wish it had eaten on the outside of the patio wall instead of inside.
November 8, 2025 at 11:14 PM
I don’t begrudge the hawk its dinner but wish it had eaten on the outside of the patio wall instead of inside.
Today Show Tucson feature this morning ideally should have had featured the other side of Cherry in this aerial shot.
November 6, 2025 at 1:51 AM
Today Show Tucson feature this morning ideally should have had featured the other side of Cherry in this aerial shot.
Some new members of the family.
November 2, 2025 at 3:41 PM
Some new members of the family.
Lots of trick or treaters tonight and great costumes.
November 1, 2025 at 1:29 AM
Lots of trick or treaters tonight and great costumes.
Practically Wild Kingdom out here. IYKYK
October 29, 2025 at 4:43 AM
Practically Wild Kingdom out here. IYKYK
Doesn’t look like a comfortable way to drink.
October 28, 2025 at 2:46 PM
Doesn’t look like a comfortable way to drink.
iPhone photo gets the mood.
October 24, 2025 at 1:59 AM
iPhone photo gets the mood.
Not Comet Lemon, but a contrail disconcertingly close to the right place.
October 21, 2025 at 1:26 AM
Not Comet Lemon, but a contrail disconcertingly close to the right place.
This is a 10/10 no notes Tucson day.
October 18, 2025 at 5:55 PM
This is a 10/10 no notes Tucson day.
Decided to show off my thesis code in my office.
October 18, 2025 at 12:22 AM
Decided to show off my thesis code in my office.
I wonder what they are discussing.....
October 17, 2025 at 11:07 PM
I wonder what they are discussing.....
One year since my best lifetime bobcat capture. The boy kit (must have been) splashed all the water out of the bowl to take a snooze.
October 11, 2025 at 7:33 PM
One year since my best lifetime bobcat capture. The boy kit (must have been) splashed all the water out of the bowl to take a snooze.
Watch the visitor on the right.
October 11, 2025 at 2:19 PM
Watch the visitor on the right.
The joke that the only time you hear from your adult children is when they need the Netflix code is a bit too close for comfort.
October 5, 2025 at 6:23 PM
The joke that the only time you hear from your adult children is when they need the Netflix code is a bit too close for comfort.
Last night at 7PM, a little drama. First time we’ve had two since spring. I was outside around the to the right enjoying the sunset at the time.
October 5, 2025 at 3:34 PM
Last night at 7PM, a little drama. First time we’ve had two since spring. I was outside around the to the right enjoying the sunset at the time.
I happened to see this live. I’m not sure what was spooking him from the roof.
October 5, 2025 at 1:01 AM
I happened to see this live. I’m not sure what was spooking him from the roof.
My lifetime first science paper was Lunine, Hubbard, and Marley (1986). Here we are getting the band back together 39 years later. Haven’t changed a bit.
Topic then was brown dwarfs and I’m still working on them.
Topic then was brown dwarfs and I’m still working on them.
October 1, 2025 at 12:01 AM
My lifetime first science paper was Lunine, Hubbard, and Marley (1986). Here we are getting the band back together 39 years later. Haven’t changed a bit.
Topic then was brown dwarfs and I’m still working on them.
Topic then was brown dwarfs and I’m still working on them.
He is 💯 certain there is something to eat here. Must be seeing the LED.
September 12, 2025 at 7:56 PM
He is 💯 certain there is something to eat here. Must be seeing the LED.
September 9, 2025 at 2:23 AM
Need this cell to move west.
September 7, 2025 at 2:10 AM
Need this cell to move west.
At a wedding-eve dinner where you make your own name tag. Not my best work but could use this one again.
August 30, 2025 at 11:07 PM
At a wedding-eve dinner where you make your own name tag. Not my best work but could use this one again.