This is Daphnis, one of Saturn's moons. This image shows its unusual gravitational effect on Saturn's rings ...

Daphnis is only about 8 km wide, but its gravity disturbs Saturn's A ring, creating ripples and edge waves. It orbits within the Keeler Gap, a 42 km-wide gap in the rings. This image shows how even small moons can shape massive ring systems.

⬇️ It's a render from 2016 by Kevin Gill. Lots of discussions in the replies.

#Astronomy #Saturn

Moon at 97%

Bayern, 4.1.2026



#photography #astrophotography #astronomy #moon

Another unknown birthday: Amongst the earliest recorded woman in #mathematics, Hypatia lived during the 3rd century AD in Alexandria, Egypt, which was part of the Roman Empire. She was born at some time between about 350 and 370 and died in 415 C.E. She taught philosophy, #astronomy and mathematics at a Neoplatonist school. She believed in empiricism and natural law. She was the daughter of a 🧵

#sciart #linocut #printmaking #womeninstem #geometry #histsci #astrolabe #mastoArt

Another unknown birthday: Amongst the earliest recorded woman in #mathematics, Hypatia lived during the 3rd century AD in Alexandria, Egypt, which was part of the Roman Empire. She was born at some time between about 350 and 370 and died in 415 C.E. She taught philosophy, #astronomy and mathematics at a Neoplatonist school. She believed in empiricism and natural law. She was the daughter of a 🧵

#sciart #linocut #printmaking #womeninstem #geometry #histsci #astrolabe #mastoArt

Moon at 97%

Bayern, 4.1.2026



#photography #astrophotography #astronomy #moon

Motion of Comet C/2025 R2 (SWAN).
A timelapse created from the first 200 sub-frames I took on October 28, 2024.
ZWO Seestar S50.
250mm, f5, 200 exposures of 10’’.
#telescope #telescopes #zwo #zwoasi #zwoseestar #zwoseestars50 #seestar #seestars50 #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepsky #deepspace #comet #c2025r2 #c2025r2swan #swan

Dusting off my old telescope and hoping for some clear nights to get a look at Jupiter, while it's so close.

Meanwhile, here's the first moonshot #Selene, I did with it using my phone

#Astrophotography #Astronomy #Moon #Lunar #NightSky #Space #MoonPhotography

Starry Night shot taken in Morocco from the Sahara desert. 5 min exposure on my Samsung Galaxy S24 Ultra.



#nature #sahara #morocco #astronomy #starryNight #space #nightPhotography

It's Stephen Hawking's birthday. The occasion to share this fantastic video he produced as part of his Genius documentatry series. Hawking elaborates on our place in the Universe, including our membership to the Laniakea supercluster of galaxies that we discovered back in 2014.

The complete documentary: https://www.pbslearningmedia.org/resource/hawking_genius_ep06_full/where-are-we-full-episode-genius-by-stephen-hawking/

#StephenHawking #Cosmology #Laniakea #LaniakeaSupercluster #galaxies #astrodon #astronomy #astrophysics #science #cosmography

It's Stephen Hawking's birthday. The occasion to share this fantastic video he produced as part of his Genius documentatry series. Hawking elaborates on our place in the Universe, including our membership to the Laniakea supercluster of galaxies that we discovered back in 2014.

The complete documentary: https://www.pbslearningmedia.org/resource/hawking_genius_ep06_full/where-are-we-full-episode-genius-by-stephen-hawking/

#StephenHawking #Cosmology #Laniakea #LaniakeaSupercluster #galaxies #astrodon #astronomy #astrophysics #science #cosmography

You need patience in science. Our paper proposing to image the shadow of a black hole was published 26 years ago. It has now gained over 1000 citations in the scientific literature (according to ADS), which is a lot.

At the time of writing it was rejected by Nature and Science and it didn't get a huge amount of citations initially, but then it continuously increased (shown are the citations per year below).

(Falcke, Melia, Agol 2000, ApJL) https://ui.adsabs.harvard.edu/abs/2000ApJ...528L..13F/abstract
#astronomy #astrodon

You need patience in science. Our paper proposing to image the shadow of a black hole was published 26 years ago. It has now gained over 1000 citations in the scientific literature (according to ADS), which is a lot.

At the time of writing it was rejected by Nature and Science and it didn't get a huge amount of citations initially, but then it continuously increased (shown are the citations per year below).

(Falcke, Melia, Agol 2000, ApJL) https://ui.adsabs.harvard.edu/abs/2000ApJ...528L..13F/abstract
#astronomy #astrodon

Dusting off my old telescope and hoping for some clear nights to get a look at Jupiter, while it's so close.

Meanwhile, here's the first moonshot #Selene, I did with it using my phone

#Astrophotography #Astronomy #Moon #Lunar #NightSky #Space #MoonPhotography

Motion of Comet C/2025 R2 (SWAN).
A timelapse created from the first 200 sub-frames I took on October 28, 2024.
ZWO Seestar S50.
250mm, f5, 200 exposures of 10’’.
#telescope #telescopes #zwo #zwoasi #zwoseestar #zwoseestars50 #seestar #seestars50 #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepsky #deepspace #comet #c2025r2 #c2025r2swan #swan

Wenn du im Bett liegst und dein Dachfenster genau auf Orion zielt.

#nightphotography #photography #astronomy #astrophotography

Tracke den Jupiter. #Dwarf3 #Astrophotography #Astronomy

Tracke den Jupiter. #Dwarf3 #Astrophotography #Astronomy