Sign in

Sarah Hörst

@planetdr.bsky.social
27.3K followers 525 following 8.8K posts

Professor of planetary science at Johns Hopkins. Titan’s biggest fan. Pomeranian wrangler. Runner. Love many, trust few, always paddle your own canoe. She/her. sarahhorst.com Planetdr.26 on signal

PostsRepliesMedia
Sarah Hörst @planetdr.bsky.social · 4h
Totally normal things happening in my class as usual
A very tiny forklift towing a sleeve of girl count cookies
6724 0
Sarah Hörst @planetdr.bsky.social · 15/10/2026
Having undergrads in the lab is the best
3d printed hot pink dragonfly with googly eyes hanging from
A shelf with a minion riding on it
3815 0
Sarah Hörst @planetdr.bsky.social · 13/10/2026
Bear’s current status
Bear very asleep next to a gray blanket
110 0
Sarah Hörst @planetdr.bsky.social · 11/10/2026
I…didn’t even bother to take a picture of the penguin before we turned it into a moose…
Large stuffed penguin sitting in a gray couch at social hour except it is dressed up as a moose
1100 0
Sarah Hörst @planetdr.bsky.social · 11/10/2026
Current status: growing the prettiest lettuce that ever lettuced I need a garden section in my CV.
Curly perfectly green and crispy lettuce on a counter top
41171 0
Sarah Hörst @planetdr.bsky.social · 08/10/2026
And then today we noticed…. Yessssssssssssss
P100 mask with a pic of a human wearing it except now the human has googly eyes
1373 0
Sarah Hörst @planetdr.bsky.social · 08/10/2026
So I put googly eyes on our teeny tiny shop vac…and then we left the container of googly eyes next to the fun magnets and puzzle… And waited… And waited… And waited…
A shop vac. Very smol. With googly eyes. Kinda looks like an industrial elephant
2173 0
Sarah Hörst @planetdr.bsky.social · 04/10/2026
Tonight I was behind a car that was the same make and model as my 2019 car and it had a Gore Lieberman 2000 bumper sticker and… I don’t even know but I thought I should share.
Proof of gore liberman bumper sticker.
7533 0
Sarah Hörst @planetdr.bsky.social · 01/10/2026
This one has been living next to our door for a few days.
A praying mantis on a door frame Praying mantis on a door
8520 0
Sarah Hörst @planetdr.bsky.social · 01/10/2026
In other lab news, you know things have gotten serious in the troubleshooting department when we’ve had to deploy a minion. (Lab people are not ok. We are never ok)
A minion in a ninja costume holding a BANANA in front of the mass spectrometer that is currently being a giant asshole
3324 0
Sarah Hörst @planetdr.bsky.social · 01/10/2026
The chamber to group member ratio in my lab is getting a little out of hand. It’s giving Oprah.
The cluttered counter in my lab. With like 7 chambers or something
11701 0
Sarah Hörst @planetdr.bsky.social · 23/09/2026
Ok unrelated to my car. A thing I’m *still* not used to about Maryland that feels like magic is multiple growing seasons. I mostly gardened in Montana which, well it snowed one 4th of July as a child so. I planted these a few weeks ago. Fall garden what
Four different kinds of lettuce in a raised bed Snap peas and a caterpillar
5472 0
Sarah Hörst @planetdr.bsky.social · 23/09/2026
What say you blue friends? Is this a piece of my car? And if so where does it go??? I’ve looked!
Front of a piece of black plastic
Back of a black piece of plastic
19160 0
Sarah Hörst @planetdr.bsky.social · 11/09/2026
We thought we finally sorted this out in June. But then it never showed up. So we sent an inquiry…
My apologies, apparently this order was never entered into our production queue.
It was never built, shipped, or billed.
If you like, we can rush the production and ship it next week.
Alternately, you may cancel the order without obligation.
7363 0
Sarah Hörst @planetdr.bsky.social · 06/09/2026
Honestly this would be funny if it wasn’t my life for the last twelve years.
Screenshot of the temperature in my office from the awair app. It has gone up 8 degrees in the last hour.
1120 0
Sarah Hörst @planetdr.bsky.social · 06/09/2026
Two Saturdays in a row 🤔 If I didn’t know better…
Temp in my office on Aug 29 going from 70 to 80 in a few hours and then back down. With the annotation that I emailed families at around 10/20 AaamScreenshot of temp going from..70 to 83 in a few hours with annotations of emails to facilities at 10 and 1:30
3220 0
Sarah Hörst @planetdr.bsky.social · 05/09/2026
Apologies for being slow. Today was actually a terrible day minus my lovely class. Tada!
2171 0
Sarah Hörst @planetdr.bsky.social · 03/09/2026
“In the Mayan tradition, people appealed to the spirit Ahmakiq (pronounced “ah-mahk-eek”) to stop strong winds from damaging their crops. The name literally translates to the “one who locks up the wind”
Picture of Titan in false color with a zoom in on Selk crater. The area south and west of Selk js colored purple
3483 0
Sarah Hörst @planetdr.bsky.social · 02/09/2026
Today I learned the collective noun for turkey vultures that are just hanging out is “committee” But now I’m wondering where the dead thing is.
Picture of our garden with a dance around it with wooden posts. There are six turkey vultures perched on fence posts
5393 0
Sarah Hörst @planetdr.bsky.social · 31/08/2026
We moved one of our Awair sensors into the largest classroom in our building over the summer to monitor humidity. It also has a CO2 sensor. Happy first day of classes to Covid and other respiratory diseases I guess.
Screenshot of the awair app showing CO2 starting the day at a respectable 436 with increases to almost 1400 at 10, noon, and 2 as classes occupy the room
4435 0
Sarah Hörst @planetdr.bsky.social · 29/08/2026
A colleague asked if I had read the comments on Hank’s video. I told her that is against my Rules of Existing on the Internet. But she insisted I go read them and many are quite lovely. Should’ve stopped before I hit this one…
R
@rhetta9826 • 8h ago
Maybe you can get one more opinion than just this one woman scientist. Someone who's a little more seasoned with decades of experience. Thanks.
31
曰
@SarahHorst • Os ago
I've been studying Titan for 26 years.
How many more years would you like?
=
:
91027 0
Sarah Hörst @planetdr.bsky.social · 26/08/2026
Big Fruit has been holding out on us. I absolutely did not know cantaloupe comes in Personal Size. They are so good!
My hand holding a smol cantaloupe with a spoon in it.
3371 0
Sarah Hörst @planetdr.bsky.social · 24/08/2026
Nice day for some French fries.
Large McDonald’s French fries being held in my hand. My nails are very blue.
2300 0
Sarah Hörst @planetdr.bsky.social · 22/08/2026
We grew everything on this plate (potatoes, carrots, pears, onion) except the pig
Pork chop with pears and onion with carrots and a baked potato
4731 0
Sarah Hörst @planetdr.bsky.social · 22/08/2026
Open!
The inside of a perfectly ripe cantaloupe
4621 0
Sarah Hörst @planetdr.bsky.social · 22/08/2026
Also we appear to have successfully grown one (1) cantaloupe that didn’t get eaten by the fox We haven’t opened it yet so maybe I shouldn’t declare victory yet
A cantaloupe on my counter
101053 0
Sarah Hörst @planetdr.bsky.social · 21/08/2026
Purple peppers continue to be magic to me
A purple bell pepper on a wooden cutting board Surprise! It’s green inside
3672 0
Sarah Hörst @planetdr.bsky.social · 20/08/2026
Pleasing
Picture of a plate of pasta covered in parm and basil
With a glass of red wine and a view of my backyard in the background
2390 0
Sarah Hörst @planetdr.bsky.social · 20/08/2026
Weird Oreo flavor update. No.
Picture of a package of apple pie à la mode Oreos. With bear in the background
7402 0
Sarah Hörst @planetdr.bsky.social · 19/08/2026
My husband said he thought the cucumbers were done. I think they heard him
A whole bunch of cucumbers sitting on our counter
4290 0
Sarah Hörst @planetdr.bsky.social · 19/08/2026
Goes out to the garden. Oh. Oh no.
More. Tomatoes
4450 0
Sarah Hörst @planetdr.bsky.social · 19/08/2026
Help
23 lbs of tomatoes cut up in a stock pot
131873 0
Sarah Hörst @planetdr.bsky.social · 18/08/2026
Bear tried to make a new friend
Bear on the sidewalk staring at a yellow and black butterfly on purple flowers A yellow and black butterfly with a little bit of blue on some purple flowers
4603 0
Sarah Hörst @planetdr.bsky.social · 18/08/2026
Bear has decided to take up knitting. If he can figure out how
Bear. With a ball of pink yarn on his head
130 0
Sarah Hörst @planetdr.bsky.social · 14/08/2026
Suspect number 1 appeared mere hours after putting out the trail cam
A dark blurry image 8/12/2026 8:56 PM 72F is what appears to be a fox just beep booping through the garden by the cantaloupe.
2221 0
Sarah Hörst @planetdr.bsky.social · 13/08/2026
Given how far they’ve been moved (and detached from their vines) in guessing trash pandas
Half eaten cantaloupe Another half eaten cantaloupe
030 0
Sarah Hörst @planetdr.bsky.social · 13/08/2026
Also my dept is getting another cucumber delivery tomorrow. We’re eating 1-3 per day and already made pickles so…
A lot of cucumbers on my counter
2300 0
Sarah Hörst @planetdr.bsky.social · 13/08/2026
If you liked the green bean situation can I interest you in a tomato apocalypse.
Tomatoes big and small. Covering my counter Same but from above
6740 0
Sarah Hörst @planetdr.bsky.social · 10/08/2026
Can’t say I ever remember this happening before
EMERGENCY JHU ALERT:
Tornado warning in effect for area including Homewood.
Seek refuge immediately indoors on lower floors. Keep away from windows until further notice.
If you did not expect this message from
5160 0
Sarah Hörst @planetdr.bsky.social · 06/08/2026
In other news I made chicken tortilla soup today using peppers from my garden
Chicken tortilla soup in a green blue bowl
3721 0
Sarah Hörst @planetdr.bsky.social · 02/08/2026
An important summer life hack is to have a local pizza joint that sells their dough
Two things of dough in my cup holder for the ride home Pizza! With mostly stuff from our garden except olives and cheese
2670 0
Sarah Hörst @planetdr.bsky.social · 02/08/2026
In other news for those of you who keep telling us to make pickles…welp
A picture of our counter. With all the pickles. And also some tomato relish bc that is also happening
73046 0
Sarah Hörst @planetdr.bsky.social · 01/08/2026
Me: buys fancy gardening apron with huge pockets for harvesting Also me:
Pictures of a fuckton of cucumbers in my shirt
1713 0
Sarah Hörst @planetdr.bsky.social · 30/07/2026
Tiny plant tax
A tiny…orange tulip?A tiny fake succulent on top of a blue thingy that says hvac shut down
1220 0
Sarah Hörst @planetdr.bsky.social · 30/07/2026
🚨🚨BREAKING NEWS FROM OLIN HALL🚨🚨 After months of…well…nothing… TINY FOOD AND NEW TINY PLANTS ARE APPEARING
A tiny donut on a window ledge A tiny Oreo on the top of a set of stairs A tiny milk on a window ledge with trees outside A tiny…cake? Macaron? On top of the water fountain
5534 0
Sarah Hörst @planetdr.bsky.social · 24/07/2026
A friend sent me an image of the Saturnian moon Daphnis that was clearly AI and I’m so flipping angry because these are REAL pics of Daphnis YOU DON’T HAVE TO AI SPACE IT IS ALREADY FUCKING AMAZING AHHH
The wavemaker moon, Daphnis, is featured in this view, taken as NASA's Cassini spacecraft made one of its ring-grazing passes over the outer edges of Saturn's rings on Jan. 16, 2017. This is the closest view of the small moon obtained yet.
NASA/JPL-Caltech/Space Science InstituteSaturn's moon Daphnis making waves in the Keeler Gap of its rings. Image taken by Cassini on 6 February 2017. NASA / JPL-Caltech / SSI / Sophia NasrCassini probe image of Daphnis surrounded by Saturn's rings (2017)
NASA/JPL-Caltech/Space Science Institute; editing by Matúš Motlo
619044 0
Sarah Hörst @planetdr.bsky.social · 23/07/2026
Today’s @xkcd.com currently making the rounds on the Dragonfly team 😂 xkcd.com/3275
THIS YEAR'S NOBEL PRIZE IN "CALIBRATING YOUR EQUIPMENT CAREFULLY AND NOT EMBARRASSING YOURSELF BY PUBLISHING SPURIOUS RESULTS" GOES TO DR. ADAMS AND DR. SMITH, WHO DID NOT ANNOUNCE THE DISCOVERY OF MICROBES ON TITAN.

Someone standing on a stage while two people walk up saying thank you 


We would like to once again apologize to Dr. Jones for last year's mistaken announcement. We should really have double-checked the envelope for this award in particular.
210111 0
Sarah Hörst @planetdr.bsky.social · 22/07/2026
I regret to inform me that has already happened
A picture of 11 jars of pickles
050 0
Sarah Hörst @planetdr.bsky.social · 22/07/2026
“I’m just going to go grab one pepper for dinner to whatever this is” pipeline
One pepper. 

Three zucchinis. 

11 cucumbers. 

Some basil
3911 0
Sarah Hörst @planetdr.bsky.social · 19/07/2026
I have no idea what is happening rn but I assume it involves sportsball (Nb I played soccer in HS and college but I would much rather play than watch)
My TL 🤷‍♀️ 4:09
Ml0l1
39
#
Following
Discover Popular With Friends
11
Benjamin Pope @benjaminpope....
• 47s
Man it keeps getting worse
...
Olúfemi O. Taíwo o
@olufemiota... • 47s
quick question: what the fuck is this
6
1 24
© 148
Dr. Paulette Vincent-...
@stemxi... • 56s
TED LASSOOOOO???
1
= Reposted by Sara Manns
Micah @rincewind.run • 1m
look if we're trying to showcase parts of america that don't suck we can do a lot worse than the muppets
109
• 125
= Reposted by Alex Wild
Dr. Emily Arndt E @brachinus.b... • 1m
does anyone else smell burnt toast
13
7
= Reposted by Emily Hunt
30+
4240 0