Dr. Z
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drzeilnhofer.bsky.social
Dr. Z
@drzeilnhofer.bsky.social
Planetary Science Researcher | Astronomy | Educator | Science Outreach | Science Communication| NASA JPL Solar System Ambassador

Research areas are in impact cratering and dwarf planet Ceres.

Opinions are my own
The auroras were spectacular last night and I am looking forward to them again tonight. If you have clear night, look up or towards the horizon depending on your latitude. #northernlights #auroraborealis #solarstorm #CME
November 12, 2025 at 2:10 PM
Happy International Observe the Moon Night! I am excited to go out an #observe the #Moon tonight and every night! Also, happy space week! #spaceweek
October 4, 2025 at 1:06 PM
It has been a busy week of talks! A few more science talks tomorrow and Friday for the SESA conference and then a slow down until November! Excited for this public talk! #StarWars #LukeSkywalker #DeathStar #Mimas #Space #Astronomy #STEAM #STEM #publicoutreach #astronomer #moon #craters #icymoon
September 24, 2025 at 11:58 PM
I have five upcoming speaking engagements this month and the list continues to grow as we support the efforts for public outreach in science! Working to bring the space sector to everyone! #spacesector #STEAM #STEM #publicoutreach #conference #publicengagment #science #astronomy #Mars #planetary
September 10, 2025 at 8:23 PM
So many great talks coming up this month! Excited for International Observe the Moon Night next month! #skywatch #astronomy #moon #publicoutreach #STEM #STEAM #science
September 2, 2025 at 7:23 PM
This is such a great discovery!

www.astronomie.nl/nieuws/en/di...
Discovery of the first ring-shaping embedded planet around a young solar analog
www.astronomie.nl
August 28, 2025 at 12:56 AM
In a continued effort to support #publicoutreach I will be starting a new monthly space chat for the community come and talk all things space! #astronomy #outreach #science #community #spacechats #STEM #education #astronomer #planetaryscience #astrophysics #spacypolicy #astrobiology
August 15, 2025 at 10:31 PM
The first newsletter for the new brand has just gone out! Super excited to continue this #publicoutreach journey and help support #STEM and #STEMeducation #astronomy #newsletter #outeach #education #spacenews #brand #planetaryscience #astrophysics #astrobiology #spacepolicy #aerospace #science
August 12, 2025 at 8:41 PM
Not only am I hosting the #international #observe the #Moon night table, I will also be hosting an event about #Titan and the #Dragonfly mission. #lunarscience #Saturn #STEM #NASA #planetaryscience #spacemissions
August 6, 2025 at 12:57 PM
Our next big event will be for International Observe the Moon Night with a table and a ton of handouts and take home crafts! #InternationalObservetheMoonNight #Moon #lunarscience #astronomy #STEMEducation #libraries
July 29, 2025 at 1:53 PM
The Sagan Summer Workshop has been fantastic! #exoplanets
July 22, 2025 at 6:49 PM
Excited for this talk tonight. Other talks are coming soon! #Io #publicoutreach #publictalks #science #sciencecommunication #astronomy
July 21, 2025 at 6:20 PM
Excited to be on the first session of the Sagan Workshop today! #Exoplanets #SaganWorkshop #CarlSagan #NASA
July 20, 2025 at 7:50 PM
The summer conference season is here. Thus far I have three different conferences to attend in the next three months! Excited to attend and present at several of these this year! #SaganWorkshop #SESA #science #scienceconferences #astronomy #planetaryscience #STEM #education #STEMeducation #craters
July 15, 2025 at 12:06 PM
Happy 10th anniversary to the New Horizons spacecraft. I remember where I was 10 years ago when the craft reached #Pluto #planetaryscience #NewHorizons #10anniversary
July 14, 2025 at 7:33 PM
I am excited to be attending the Sagan Summer Workshop this year! #exoplanets #SaganSummerWorkshop #astronomy #astrophysics
July 14, 2025 at 6:21 PM
Only a few weeks away and there are limited spots available! Share with anyone interested in space! #sciencecomm #sciencecommunication #publicoutreach #STEM #Io #Jupiter #librariesofNY #publictalk #astronomy #solarsystem
My next #publictalk is Monday June 30 which is also #AsteroidDay

Following the talk in June is the talk in July focused on #Io and all its wonders. #Juno #Jupiter #PlanetaryScience #Sciencecomm #Scicomm #astronomy
July 12, 2025 at 1:39 PM
My next talk is only two weeks away! Excited to finalize the details for the talk and present it to the public! #Io #moonsofthesolarsystem #astronomy #Jupiter
July 8, 2025 at 6:29 PM
Reposted by Dr. Z
A nice prominence eruption was just observed off the northwest limb beginning around 07:00 UTC (July 5). A coronal mass ejection is associated and will be directed away from Earth. Image by GOES SUVI.
July 5, 2025 at 11:07 AM
These interstellar objects are just fascinating. I cannot wait to see what studies come from this recent discovery.
Astronomers may have just discovered the third interstellar object passing through the Solar System!

ESA’s Planetary Defenders are observing the object, provisionally known as #A11pl3Z, right now using telescopes around the world.
July 3, 2025 at 1:21 PM
Happy #Aphelion Day!
July 3, 2025 at 1:19 PM
So grateful for all who came to my talk last night. Such a great turnout. I am excited for the next talk in July! #moonsofthesolarsystem #scicomm #Europa #library #Io #Jupitersmoons
July 1, 2025 at 11:52 AM
Happy Asteroid Day! What is your favorite asteroid? #AsteroidDay #PlanetaryDefense #NEAs #AsteroidBelt
June 30, 2025 at 1:53 PM
My next #publictalk is Monday June 30 which is also #AsteroidDay

Following the talk in June is the talk in July focused on #Io and all its wonders. #Juno #Jupiter #PlanetaryScience #Sciencecomm #Scicomm #astronomy
June 27, 2025 at 1:16 PM
Reposted by Dr. Z
The surface of Mars captured by Perseverance Rover.

Credit: NASA​/​JPL-Caltech​/​ASU​/​MSSS
June 22, 2025 at 11:34 PM