Joe Renaud
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spacetides.bsky.social
Joe Renaud
@spacetides.bsky.social
1.8K followers 850 following 77 posts
NASA Ast. Research Scientist | U. Maryland | Studying tides on moons and #Exoplanets 🪐| Favorites: #SG1, 🍕,🍷,🍺,🏃‍♂️,🌶️ | He/him | Married to Jessica Teaford | Opinions my own
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spacetides.bsky.social
Joe Renaud @spacetides.bsky.social · Aug 13
I wanted to share a side project I have been working on: CyRK github.com/jrenaud90/CyRK a #Python package that mimics much of the functionality of #SciPy solve_ivp but can perform #ODE integrations 100's x faster. If you are looking for a numerical integrator for your python project, check it out!
A black graph with white text. Y-axis is Average time; X-axis is number of required integration steps. There are several dots showing the performance of CyRK's cysolve_ivp, pysolve_ivp, and nbsolve_ivp functions compared to SciPy's solve_ivp. In all cases CyRK is significantly faster than SciPy. The plot shows the cysolve_ivp method to be the best in all circumstances.
Reposted by Joe Renaud
odedrechavi.bsky.social
Adding citations of people who might review the paper
November 14, 2025 at 10:06 AM
spacetides.bsky.social
Roman is romaning! #nasa #roman

Alt txt for all: Roman space telescope primary mirror at NASA Goddard.
November 13, 2025 at 10:04 PM
Reposted by Joe Renaud
aguscipolicy.bsky.social
🚨 NASA scientists warn: critical equipment at Goddard Space Flight Center could be discarded during the shutdown, jeopardizing decades of Earth & space science missions.

📢 Act now: agu.quorum.us/campaign/146...

#sciencepolicy #saveNASA
November 7, 2025 at 12:45 AM
spacetides.bsky.social
can confirm most of this
space.com Space.com @space.com · 18d
#nasa is shuttering the Goddard #space #flight center in a move that may not be entirely legal, according to critics. For months, our #staff #writer @joshdinner.bsky.social interviewed NASA #employees, read #senate reports and more to give you the deepest dive yet.

www.space.com/space-explor...
October 31, 2025 at 5:02 PM
Reposted by Joe Renaud
beckyhammer.bsky.social
My 8yo told me she had a dream that she went "taco treating," which is where you go door to door and people give you tacos
October 30, 2025 at 11:25 AM
Reposted by Joe Renaud
drewscanlon.bsky.social
Hi Internet! I'm Drew and THIS IS MY FACE.

If this GIF has ever brought you joy in the past, I humbly ask you to consider making a donation to the National MS Society. It would mean a lot to me and to those I know affected by the disease!

Donate at blinkingguy.com
September 26, 2025 at 3:37 PM
Reposted by Joe Renaud
beckyhammer.bsky.social
Did not realize until right now that one thousand percent humidity was a metric that was possible to achieve
September 25, 2025 at 12:21 PM
Reposted by Joe Renaud
offallingstars.bsky.social
I'm actually fully saturated with students already, but I'd be happy to host postdoc fellows for the NHFP, the 51 Peg b, NSF AAPF, etc. Please feel free to reach out!
September 23, 2025 at 5:29 PM
Reposted by Joe Renaud
shannonstirone.bsky.social
Your shot and your chaser
George R.R. Martin > Quotes > Quotable Quote (?) "I think there are two types of writers, the architects and the gardeners. The architects plan everything ahead of time, like an architect building a house. They know how many rooms are going to be in the house, what kind of roof they're going to have, where the wires are going to run, what kind of plumbing there's going to be. They have the whole thing designed and blueprinted out before they even nail the first board up. The gardeners dig a hole, drop in a seed and water it. They kind of know what seed it is, they know if planted a fantasy seed or mystery seed or whatever. But as the plant comes up and they water it, they don't know how many branches it's going to have, they find out as it grows. And I'm much more a gardener than an architect." - George R.R. Martin
August 20, 2025 at 1:02 AM
spacetides.bsky.social
I wanted to share a side project I have been working on: CyRK github.com/jrenaud90/CyRK a #Python package that mimics much of the functionality of #SciPy solve_ivp but can perform #ODE integrations 100's x faster. If you are looking for a numerical integrator for your python project, check it out!
A black graph with white text. Y-axis is Average time; X-axis is number of required integration steps. There are several dots showing the performance of CyRK's cysolve_ivp, pysolve_ivp, and nbsolve_ivp functions compared to SciPy's solve_ivp. In all cases CyRK is significantly faster than SciPy. The plot shows the cysolve_ivp method to be the best in all circumstances.
August 13, 2025 at 8:09 PM
spacetides.bsky.social
I am losing my mind
Map of houses next to a 18 lane highway surrounded by parking lots and nothing to walk to in LA; houses cost at least $675,000 if not $800k+
August 13, 2025 at 12:14 AM
spacetides.bsky.social
My doctor's new registration portal has old English as a preferred language option. Excited to discuss my aliments Beowulf style.
A online form that has a drop down selection for preferred language. After typing the letters "e" "n" "g" the recommended options in the list are "English, Old (ca. 450-1100)", "English", "English, Middle (1100-1500)".
August 7, 2025 at 3:28 PM
Reposted by Joe Renaud
planetdr.bsky.social
I am community sourcing a list of people who are actively in search of MS/PhD students in planetary science/astrobiology/exoplanets for Fall 2026. If you are such a person, please fill out the following google form:
docs.google.com/forms/d/e/1F...
Planetary Science MS/PhD Positions for Fall 2026
Crowd sourced list of people who are looking for MS/PhD students to help connect prospective students with advisors so we can do even more fabulous planetary science! (Submitting a response indicates ...
docs.google.com
August 5, 2025 at 6:03 PM
spacetides.bsky.social
Back to the Corgi
August 3, 2025 at 3:41 AM
spacetides.bsky.social
The people who are going to make #HWO25 happen, and I am there as well!
July 31, 2025 at 1:44 AM
Reposted by Joe Renaud
planetdr.bsky.social
I’m convening a session at a planetary science conference this fall and people keep withdrawing their presentations. So far every one has been withdrawn because of lack of travel support. It’s all folks coming from the US. This administration is killing scientific disciplines in big ways and small
July 26, 2025 at 6:24 PM
Reposted by Joe Renaud
voiceofobrien.bsky.social
The Mighty Nein have arrived!

youtu.be/G7OCKYZjOcY?...
The Mighty Nein - S1 Sneak Peek | Prime Video
YouTube video by Prime Video
youtu.be
July 25, 2025 at 12:14 AM
Reposted by Joe Renaud
cnn.com
A group of 287 scientists and current and former NASA employees has issued a declaration lambasting budget cuts, grant cancellations and a “culture of organizational silence” that they say could pose a risk to astronauts’ safety.
In scathing letter, NASA workers rebuke ‘rapid and wasteful changes’ at agency | CNN
Current and former NASA employees have co-signed a declaration protesting changes at the agency that some say pose a grave risk to astronauts.
cnn.it
July 21, 2025 at 4:46 PM
spacetides.bsky.social
www.standupforscience.net/nasa-voyager...
Support the NASA Voyager Declaration Now! — STAND UP FOR SCIENCE
Your solidarity with the NASA heroes helps their fight to preserve NASA's vital missions.
www.standupforscience.net
July 21, 2025 at 1:57 PM
Reposted by Joe Renaud
dieworkwear.bsky.social
me at the coldplay show
A screenshot from the US version of the TV show The Office. Michael Scott is being gently held from behind by a Holly Flax.
July 17, 2025 at 8:40 PM
spacetides.bsky.social
Wife has a pretty cool job. #wolftrap
July 17, 2025 at 11:08 PM
spacetides.bsky.social
#Roman is starting to look like a real telescope!
The Roman space telescopes primary mirror apparatus and solar panels are sitting on the floor in a giant clean room at NASA Goddard. The Roman space telescopes main instrument package and superstructure is surrounded by engineers in bunny suites in a giant clean room. Behind the telescope is a huge wall of filters cleaning the air.
July 16, 2025 at 2:23 PM
Reposted by Joe Renaud
katvolk.bsky.social
Yeah, here's the graphical representation of how bad the ROSES consolidation of solar system programs is from research.ssl.berkeley.edu/~mikewong/bl...
A stacked bar chart showing the money allocated to all of the programs from ROSES24 that were consolidated into the single solar system science program in ROSES25. The ROSES24 stack totals 30+ million dollars while the new program is at 10 million dollars
July 11, 2025 at 10:28 PM
Reposted by Joe Renaud
ohdearz.bsky.social
For anyone unfamiliar, the ranks of GS-13, GS-14, and GS-15 are equivalent of assistant, associate, and full professor ranks among NASA civil servants. This is the letting go of over 2,000 faculty-level researchers. 🔭🧪
July 9, 2025 at 10:55 PM
Reposted by Joe Renaud
rerutled.bsky.social
With cuts like these -- 5,000 planned cut staff through 2026, 1414 cut staff at Goddard Space Flight Center alone, where much of NASA Astrophysics is housed -- the United States effectively abandons its decades-old global leadership position in astrophysics.
July 9, 2025 at 7:25 PM