Mark Marley @markmarley.bsky.social · 12/10/2026How have I never seen the Campbell Zac bats before? 350
Mark Marley @markmarley.bsky.social · 01/10/2026Possibly lifetime best student review of a class I taught. 150
Mark Marley @markmarley.bsky.social · 01/10/2026Good luck to Jessica Watkins on her ride up to the space station this morning. I still have her final project ppt on my laptop from when she took the "What Makes a Habitable Planet?" course I co-taught at Stanford with Jack Lissauer. 1172
Mark Marley @markmarley.bsky.social · 24/09/2026From yesterday, Planetary Geosciences undergraduate Dora Elalaoui-Pinedo explains her working making digital terrain models to NASA Administrator Isaacman. Dora is one of the first 10 or so majors in our new program that started a few years ago. 073
Mark Marley @markmarley.bsky.social · 23/09/2026Congratulations to @jjfplanet.bsky.social for his recognition with the Fred Whipple Award and Lecture! 1153
Mark Marley @markmarley.bsky.social · 23/09/2026Enjoyed meeting NASA Administrator Jared Isaacman today as he heard about a few of our missions and met some of our amazing undergrads and grads who make it all possible. 020
Mark Marley @markmarley.bsky.social · 16/09/2026Ewen knew every inch of the moon and was the one who did the heavy lifting with all of the Kuiper atlases but does not have a crater. 120
Mark Marley @markmarley.bsky.social · 07/09/2026Spouse, waking me up last night, “the javelina are fighting”. Sound on. Not sure exactly how to break up such an argument. 617037
Mark Marley @markmarley.bsky.social · 06/09/2026LPL's Catalina Sky Survey @catalinaskysurvey.bsky.social discovered a small asteroid shortly before it impacted Australia yesterday. 161
Mark Marley @markmarley.bsky.social · 06/09/2026The algorithm hit all my buttons on this t-shirt so I had no choice really. 1120
Mark Marley @markmarley.bsky.social · 05/09/2026This year is the most activity we’ve had since we moved here 5 years ago. Getting to see a lot of interesting behavior including hunts and play. Here is some shenanigans from yesterday. 060
Mark Marley @markmarley.bsky.social · 04/09/2026We lock eyes and he looks at me like, what are you going to do about it? I did my best Steve Irwin and said it’s all yours. It’s not a problem. He gave me a serious look and then jumped down outside the fence. The camera caught him a few seconds later. 150
Mark Marley @markmarley.bsky.social · 30/08/2026You gotta love this selection of Tucson headlines. 170
Mark Marley @markmarley.bsky.social · 25/08/2026Someone wanted to look up the exoplanets DRM for JWST to see where they got the exoplanets models from. I wish I could say I could remember doing this. 020
Mark Marley @markmarley.bsky.social · 25/08/2026Let your mentees know, time to start working on your LPL Graduate Program applications. 031
Mark Marley @markmarley.bsky.social · 25/08/2026A lot of biodiversity lately. I think this is a coachwhip. 030
Mark Marley @markmarley.bsky.social · 15/08/2026When you see something suspicious under a couch around here half the time it is a rubber band or other debris. A third of the time it is a dead scorpion and the rest of the time it’s a live one. Today was a dead one. 051
Mark Marley @markmarley.bsky.social · 07/08/2026Sneaking up on your siblings seems to be a universal pastime. 050
Mark Marley @markmarley.bsky.social · 02/08/2026It’s funny that I’ve had this for a couple of years and it’s just these particular javelina that are vandals. Next step will be to try your method. I did set up a backup inside the fence while I’m away and the bobcats found it. 010
Mark Marley @markmarley.bsky.social · 01/08/2026Me: “Now that I’ve armored the water station the javelina won’t be able to disrupt it”. Javelina: “hold my garbage bin” 2100
Mark Marley @markmarley.bsky.social · 31/07/2026It was great to see LPL grads and alums bringing planetary science perspective to brown dwarfs at the Charting Substellar Worlds workshop this week. Wonderful science and great setting. 040
Mark Marley @markmarley.bsky.social · 27/07/2026Getting hydrated before heading off to this week’s brown dwarf workshop in Monterey. 270
Mark Marley @markmarley.bsky.social · 19/07/2026Forget the World Cup, I found the cable I needed in my box of old cables. 0161
Mark Marley @markmarley.bsky.social · 19/07/2026Haven’t seen any bobcats for a while but I guess Mom was busy. 041
Mark Marley @markmarley.bsky.social · 11/07/2026The osprey are unperturbed by the air traffic in their domain. 110
Mark Marley @markmarley.bsky.social · 11/07/2026Amazing pilots. “Forward progress has been stopped”. 110
Mark Marley @markmarley.bsky.social · 11/07/2026Fire near my friends we are visiting. CalFire in the job. 120
Mark Marley @markmarley.bsky.social · 04/07/2026Never used these plates I inherited from someone. Decided today’s the day. 250
Mark Marley @markmarley.bsky.social · 04/07/2026It would be interesting, if sad, to hear from the mother quail who lost most of their chicks as to what happened. “The Gila monster came”. 000
Mark Marley @markmarley.bsky.social · 03/07/2026Two of the early cloud modelers, meeting in agreement at St. Andrews: 110
Mark Marley @markmarley.bsky.social · 03/07/2026Finally had a chance to rebuild and re-armor our wildlife watering station after a very very bad javelina tore it apart and broke the bowl. The quail are appreciative. 040
Mark Marley @markmarley.bsky.social · 02/07/2026I broadly agree with you however will point out that Lodders (e.g., Lodders 1999, figure below) has always said you get both MgSiO3 and Mg2SiO4. Early models tended to pick one species for simplicity. The alkali clouds form at T's below around 900K. 110
Mark Marley @markmarley.bsky.social · 29/06/2026Last Friday I got to see Roger Angel pitching a new space telescope concept for habitable planet direct imaging. 140
Mark Marley @markmarley.bsky.social · 20/06/2026These are classics available from shop.startorialist.com/_t/c/v3/AADS... 000
Mark Marley @markmarley.bsky.social · 16/06/2026LPL's Ty Robinson talking up our improvement in the USNWR rankings to be the #1 worldwide public university for space science. (hopefully not attributing to his own arrival on the faculty :) ) 070
Mark Marley @markmarley.bsky.social · 16/06/2026New US News global rankings for Space Science are out. LPL+Steward looking good. 060
