Johanna Hartke
@jhartke.bsky.social
Astronomer. Collegium Researcher at the Finnish Centre for Astronomy with ESO, University of Turku, FI. Working on galaxy halos, intra-cluster light and planetary nebulae as kinematic tracers and all things IFU. She/her.
I have recently been invited to write a mini review on planetary nebulae as tracers of accreted stellar populations, which has now been published in Frontiers in Astronomy and Space Sciences. 🔭👩🔬
November 21, 2025 at 11:20 AM
I have recently been invited to write a mini review on planetary nebulae as tracers of accreted stellar populations, which has now been published in Frontiers in Astronomy and Space Sciences. 🔭👩🔬
Reposted by Johanna Hartke
Vielleicht haben „die Töchter“ auch keinen Bock mehr darauf, dass ihre Rechte und ihre Sicherheit für Friedrich Merz immer genau dann von Bedeutung sind, wenn er sie nutzen kann, um seine vollkommen rückwärtsgewandte Politik zu rechtfertigen?
October 20, 2025 at 11:58 AM
Vielleicht haben „die Töchter“ auch keinen Bock mehr darauf, dass ihre Rechte und ihre Sicherheit für Friedrich Merz immer genau dann von Bedeutung sind, wenn er sie nutzen kann, um seine vollkommen rückwärtsgewandte Politik zu rechtfertigen?
Reposted by Johanna Hartke
I'm offering a funded PhD position on nighttime lights #RemoteSensing in the Institute of #geography at the @ruhr-uni-bochum.de https://jobs.ruhr-uni-bochum.de/jobposting/62065e5be70a916f65edd647cd1b1740b04cd72e0
I'd love for the ad to be seen by as many potential candidates as possible, so […]
I'd love for the ad to be seen by as many potential candidates as possible, so […]
Original post on fediscience.org
fediscience.org
October 21, 2025 at 9:23 AM
I'm offering a funded PhD position on nighttime lights #RemoteSensing in the Institute of #geography at the @ruhr-uni-bochum.de https://jobs.ruhr-uni-bochum.de/jobposting/62065e5be70a916f65edd647cd1b1740b04cd72e0
I'd love for the ad to be seen by as many potential candidates as possible, so […]
I'd love for the ad to be seen by as many potential candidates as possible, so […]
Reposted by Johanna Hartke
Sunset: Paranal eclipsing Armazones with the ELT #astrophotography
October 20, 2025 at 9:04 AM
Sunset: Paranal eclipsing Armazones with the ELT #astrophotography
Reposted by Johanna Hartke
The Finnish Centre for Astronomy with ESO (FINCA) is inviting applications for the FINCA postdoctoral fellowship:
aas.org/jobregister/... 🔭
aas.org/jobregister/... 🔭
FINCA Postdoctoral Researcher Positions | American Astronomical Society
The Finnish Centre for Astronomy with ESO (FINCA) is a national research institute in Finland, with its headquarters within the University of Turku (UTU) campus. Turku is a historic city in the South...
aas.org
October 15, 2025 at 7:35 AM
The Finnish Centre for Astronomy with ESO (FINCA) is inviting applications for the FINCA postdoctoral fellowship:
aas.org/jobregister/... 🔭
aas.org/jobregister/... 🔭
Reposted by Johanna Hartke
"Humans aren’t very efficient movers—until you put us on a bicycle, when we become some of the most energy-efficient land travelers in the animal kingdom."
www.scientificamerican.com/article/a-hu...
www.scientificamerican.com/article/a-hu...
October 14, 2025 at 11:22 PM
"Humans aren’t very efficient movers—until you put us on a bicycle, when we become some of the most energy-efficient land travelers in the animal kingdom."
www.scientificamerican.com/article/a-hu...
www.scientificamerican.com/article/a-hu...
Reposted by Johanna Hartke
My cartoon for this week’s @newscientist.com
October 12, 2025 at 9:25 AM
My cartoon for this week’s @newscientist.com
Reposted by Johanna Hartke
„Dauerstellen sind notwendig, aber nicht hinreichend für echte Gleichstellung“, so @mariehuber.bsky.social in dieser eindrücklichen Replik auf uns, die reich an Bsp. ist, was bzgl. Gleichstellung in der Wissenschaft nach wie vor schiefläuft — & Vorschläge macht, wie es besser geht. 🙏 #IchBinHanna
October 15, 2025 at 6:00 AM
„Dauerstellen sind notwendig, aber nicht hinreichend für echte Gleichstellung“, so @mariehuber.bsky.social in dieser eindrücklichen Replik auf uns, die reich an Bsp. ist, was bzgl. Gleichstellung in der Wissenschaft nach wie vor schiefläuft — & Vorschläge macht, wie es besser geht. 🙏 #IchBinHanna
The Finnish Centre for Astronomy with ESO (FINCA) is inviting applications for the FINCA postdoctoral fellowship:
aas.org/jobregister/... 🔭
aas.org/jobregister/... 🔭
FINCA Postdoctoral Researcher Positions | American Astronomical Society
The Finnish Centre for Astronomy with ESO (FINCA) is a national research institute in Finland, with its headquarters within the University of Turku (UTU) campus. Turku is a historic city in the South...
aas.org
October 15, 2025 at 7:35 AM
The Finnish Centre for Astronomy with ESO (FINCA) is inviting applications for the FINCA postdoctoral fellowship:
aas.org/jobregister/... 🔭
aas.org/jobregister/... 🔭
Reposted by Johanna Hartke
Aus gegebenem Anlass: Unser neues Dossier thematisiert Geschlechterungleichheiten im Wissenschaftssystem – von den historischen Wurzeln der Differenzkategorien über die politische Semantik der Exzellenz bis hin zu alltäglichen Mechanismen.
www.soziopolis.de/dossier/wiss...
www.soziopolis.de/dossier/wiss...
October 14, 2025 at 7:41 AM
Aus gegebenem Anlass: Unser neues Dossier thematisiert Geschlechterungleichheiten im Wissenschaftssystem – von den historischen Wurzeln der Differenzkategorien über die politische Semantik der Exzellenz bis hin zu alltäglichen Mechanismen.
www.soziopolis.de/dossier/wiss...
www.soziopolis.de/dossier/wiss...
Reposted by Johanna Hartke
Ein Beitrag von @drkeichhorn.bsky.social und @amreibahr.bsky.social zu Frauen i.d. Wissenschaft, aus dem ich alles zitieren könnte, weil es so treffend ist. Bitte den ganzen Artikel lesen! - und ja zum Fazit: Die beste Frauenförderung sind faire Arbeitsbedingungen
www.soziopolis.de/ziel-erkannt...
www.soziopolis.de/ziel-erkannt...
Ziel erkannt, Ziel verfehlt?
Warum wir allen Gleichstellungsmaßnahmen zur Förderung von Frauen in der Wissenschaft zum Trotz auf der Stelle treten
www.soziopolis.de
October 14, 2025 at 10:25 AM
Ein Beitrag von @drkeichhorn.bsky.social und @amreibahr.bsky.social zu Frauen i.d. Wissenschaft, aus dem ich alles zitieren könnte, weil es so treffend ist. Bitte den ganzen Artikel lesen! - und ja zum Fazit: Die beste Frauenförderung sind faire Arbeitsbedingungen
www.soziopolis.de/ziel-erkannt...
www.soziopolis.de/ziel-erkannt...
Reposted by Johanna Hartke
Got distracted while getting ready for work. The combination of a fox and autumn colours in our garden was irresistible. Started with my phone but then had to grab my proper camera.
#autumn
#autumn
October 13, 2025 at 11:02 AM
Got distracted while getting ready for work. The combination of a fox and autumn colours in our garden was irresistible. Started with my phone but then had to grab my proper camera.
#autumn
#autumn
Reposted by Johanna Hartke
Ich bin ja gegen Sprachverbote und für geschlechtergerechte Sprache und gesundes Essen.
October 9, 2025 at 5:13 AM
Ich bin ja gegen Sprachverbote und für geschlechtergerechte Sprache und gesundes Essen.
Reposted by Johanna Hartke
Congratulations to John Clarke, Michel Devoret and John Martinis for winning the Nobel Price in Physics … for Johns.
By my count from last year, this should now make it 12 men named John who were awarded the Nobel, versus a total of five women (of any name). 🧪
By my count from last year, this should now make it 12 men named John who were awarded the Nobel, versus a total of five women (of any name). 🧪
Congratulations, the Nobel Prize in Physics 🧪 has now been awarded to twice as many guys named John than women.
(One John even got it two times.)
(One John even got it two times.)
October 7, 2025 at 4:12 PM
Congratulations to John Clarke, Michel Devoret and John Martinis for winning the Nobel Price in Physics … for Johns.
By my count from last year, this should now make it 12 men named John who were awarded the Nobel, versus a total of five women (of any name). 🧪
By my count from last year, this should now make it 12 men named John who were awarded the Nobel, versus a total of five women (of any name). 🧪
Reposted by Johanna Hartke
Cite. Women.
Looking at yet another case where there are 7 papers that should be cited, 6 led by men. Only one not listed is the one led by a female ECR (even though it is more up to date than one of the male-led papers).
Looking at yet another case where there are 7 papers that should be cited, 6 led by men. Only one not listed is the one led by a female ECR (even though it is more up to date than one of the male-led papers).
August 27, 2025 at 7:38 AM
Cite. Women.
Looking at yet another case where there are 7 papers that should be cited, 6 led by men. Only one not listed is the one led by a female ECR (even though it is more up to date than one of the male-led papers).
Looking at yet another case where there are 7 papers that should be cited, 6 led by men. Only one not listed is the one led by a female ECR (even though it is more up to date than one of the male-led papers).
Reposted by Johanna Hartke
Can you believe that ultra diffuse galaxies have been some for 10 years? Neither can I, they're actually typically billions of years old after year. But we are having a conference anyway #10yearsUDGs
August 18, 2025 at 7:52 AM
Can you believe that ultra diffuse galaxies have been some for 10 years? Neither can I, they're actually typically billions of years old after year. But we are having a conference anyway #10yearsUDGs
Reposted by Johanna Hartke
Reposted by Johanna Hartke
Please retweet! We are looking for highly committed scientists with an individual scientific research career plan. You will work in an excellent consortium and have top research conditions. Work share is 80-20, that is you have one day per week to work on your own ideas.
We open a Postdoc position starting asap in theoretical chemistry for our ERC Synergy 2DPolyMembrane on quantum simulations of proton diffusion through precision pores.
Deadline Aug 21
verw.tu-dresden.de/StellAus/ste...
#postdoctoral #chemsky #academia #compchem #Academicjobs #science #physics
Deadline Aug 21
verw.tu-dresden.de/StellAus/ste...
#postdoctoral #chemsky #academia #compchem #Academicjobs #science #physics
verw.tu-dresden.de
August 11, 2025 at 6:36 AM
Please retweet! We are looking for highly committed scientists with an individual scientific research career plan. You will work in an excellent consortium and have top research conditions. Work share is 80-20, that is you have one day per week to work on your own ideas.
Reposted by Johanna Hartke
August 8, 2025 at 9:39 AM
Reposted by Johanna Hartke
Dass die Kampagne gegen #BrosiusGersdorf sich als erfolgreich erwiesen hat, ist besorgniserregend. Wie ihre Entscheidung zu bewerten ist, scheint mir dabei 1 nachgelagerte Frage — zentraler ist Rolle von Politik & Medien, die dringend aufgearbeitet werden muss, damit sowas nicht zur Regel wird.
August 7, 2025 at 11:29 AM
Dass die Kampagne gegen #BrosiusGersdorf sich als erfolgreich erwiesen hat, ist besorgniserregend. Wie ihre Entscheidung zu bewerten ist, scheint mir dabei 1 nachgelagerte Frage — zentraler ist Rolle von Politik & Medien, die dringend aufgearbeitet werden muss, damit sowas nicht zur Regel wird.
Reposted by Johanna Hartke
How is this government still afloat? How they have not crumbled under the weight of their stupidity? Not a lot of this is talked in English unfortunately and I miss a lot of discourse, not understanding advanced Finnish. Can someone like @jmkorhonen.fi make a megathread on this in English? 😅
Finland's finance ministry begins 2026 budget framework talks
Finance Minister Riikka Purra told Yle this week that the government needs to find another one billion euros in savings before the end of its term in office.
yle.fi
August 7, 2025 at 6:34 AM
How is this government still afloat? How they have not crumbled under the weight of their stupidity? Not a lot of this is talked in English unfortunately and I miss a lot of discourse, not understanding advanced Finnish. Can someone like @jmkorhonen.fi make a megathread on this in English? 😅
Scary news from Finland's right-wing-led Finance Ministry with a ~200 MEur funding cut to universities and the proposal to abolish the Finnish National Agency for Education, among many other proposed cuts to healthcare, arts, and culture, as well as to development and refugee aid. 🤬
August 7, 2025 at 10:38 AM
Scary news from Finland's right-wing-led Finance Ministry with a ~200 MEur funding cut to universities and the proposal to abolish the Finnish National Agency for Education, among many other proposed cuts to healthcare, arts, and culture, as well as to development and refugee aid. 🤬
Reposted by Johanna Hartke
HUGE NEWS FROM HELSINKI, FINLAND
Helsinki, a city of 690 000 people, has now had a full year without any traffic fatalities. None. No pedestrian, cyclist, scooter user or car deaths.
This is a huge achievement for a city of our size. 💪🏻
A little background 🧵 1/
yle.fi/a/74-20174831
Helsinki, a city of 690 000 people, has now had a full year without any traffic fatalities. None. No pedestrian, cyclist, scooter user or car deaths.
This is a huge achievement for a city of our size. 💪🏻
A little background 🧵 1/
yle.fi/a/74-20174831
Helsinki goes a full year without a traffic death
A city traffic engineer credits the success to lower speed limits and smarter design.
yle.fi
July 30, 2025 at 8:51 AM
HUGE NEWS FROM HELSINKI, FINLAND
Helsinki, a city of 690 000 people, has now had a full year without any traffic fatalities. None. No pedestrian, cyclist, scooter user or car deaths.
This is a huge achievement for a city of our size. 💪🏻
A little background 🧵 1/
yle.fi/a/74-20174831
Helsinki, a city of 690 000 people, has now had a full year without any traffic fatalities. None. No pedestrian, cyclist, scooter user or car deaths.
This is a huge achievement for a city of our size. 💪🏻
A little background 🧵 1/
yle.fi/a/74-20174831
Reposted by Johanna Hartke
Kritik an Ministerin Bärs unsäglichen Äußerungen zu #BrosiusGersdorf kommt nun auch aus der SPD: Wiebke Esdar äußert sich angemessen deutlich zur Bedrohung der #Wissenschaftsfreiheit durch die Angriffe & zeigt sich mehr als erstaunt über mangelnde Solidarität aufseiten der Ministerin. Richtig so!
July 16, 2025 at 12:19 PM
Kritik an Ministerin Bärs unsäglichen Äußerungen zu #BrosiusGersdorf kommt nun auch aus der SPD: Wiebke Esdar äußert sich angemessen deutlich zur Bedrohung der #Wissenschaftsfreiheit durch die Angriffe & zeigt sich mehr als erstaunt über mangelnde Solidarität aufseiten der Ministerin. Richtig so!
Reposted by Johanna Hartke
Die Politikerin, die sich hier so exponiert gegen Prof. Brosius-Gersdorf ist Bundesministerin für Wissenschaft und Forschung, mithin verpflichtet dem Schutz und Gedeihen der Wissenschaft und der Wissenschaftler:innen.
Und jetzt schreib ich weiter am Buch zur Wissenschaftsfreiheit (“ein Abgesang”).
Und jetzt schreib ich weiter am Buch zur Wissenschaftsfreiheit (“ein Abgesang”).
July 16, 2025 at 9:02 AM
Die Politikerin, die sich hier so exponiert gegen Prof. Brosius-Gersdorf ist Bundesministerin für Wissenschaft und Forschung, mithin verpflichtet dem Schutz und Gedeihen der Wissenschaft und der Wissenschaftler:innen.
Und jetzt schreib ich weiter am Buch zur Wissenschaftsfreiheit (“ein Abgesang”).
Und jetzt schreib ich weiter am Buch zur Wissenschaftsfreiheit (“ein Abgesang”).