Mark Marley

@markmarley.bsky.social

1683 Followers 266 Following

Personal account. Substellar science since the 80s.

Patriotic plate with a tall ship design.
Wildlife camera shot of a quail family drinking from a Terra cotta bowl of water.
Chemical equilibrium stability plot relevant to brown dwarf atmospheres.
Roger Angel holding a small model of a space telescope with four circular mirrors.
View from airplane window looking south over LAX to the sea.
Top 3 universities for space science on 2026 USNWR list: caltech, Harvard, Arizona
Jupiter and Venus in the evening sky.
Schematic diagram showing how any changes in exoplanet haze optical properties after getting zapped by UV light are measured.
Broken water Terra cotta water bowl for wildlife.
Two javelina drinking water, snouts side by side.
Agave flower.
Great horned owl sitting on a fence in Tucson.
Agave in bloom
Vintage cigarette magazine ad featuring an astronomer.
Quail family at a water supply. Male and female and half a dozen chicks.
Agave with flower stalk and flowers.
Gila monster under a cactus
Gila monster on trail cam
Bobcat on its back rolling in the dirt.
Quail chicks around a water feature.
Agave with flower stalk emerging.
Book cover for “Murder in the Fourth Estate” by Jeremy Duda. Also summary of the conclusion that Kemper Marley was not involved.