⏰ Start your countdown clock for the exact moment of the autumn #equinox, 19:19 (UK) 22nd Sept, when the Northern hemisphere and Southern hemisphere are equally illuminated. Today the day length in 🏴󠁧󠁢󠁳󠁣󠁴󠁿Scotland is ~the same as in 🇳🇿New Zealand 🤓🧪🔭 📷: National Maritime Museum, Greenwich

Mars Perseverance Raw Image of the Week This photo was selected by public vote and featured as "Image of the Week" for Week 240 (Sept. 14 - 20, 2025) of the Perseverance rover mission on Mars. Image Credit: NASA/JPL-Caltech/ASU mars.nasa.gov/mars2020/mul... #Mars 🧪🔭

New Mars research reveals multiple episodes of habitability in Jezero Crater ➡️ news.rice.edu/news/2025/ne... ➡️ doi.org/10.1029/2024... #Mars 🧪 #PlanetSci

Doh! nasa.gov is down

Beautiful new cover at Nature Astronomy's Concentric shells of highly ionized calcium and sulfur in the ejecta of a type Ia supernova provide evidence of the double-detonation scenario for exploding sub-Chandrasekhar-mass white dwarfs. 🧪🔭 www.nature.com/natastron/vo... @natastron.nature.com

L'occultation de la planète Vénus par la Lune, en fin croissant, depuis Reims, le 19 septembre 2025. Vidéos réalisées au #Seestar S50 depuis Reims. #Astronomy #Astrophotography #Moon #Occultation #Venus

Very excited to kick off our workshop at @esivienna.bsky.social on "Putting the cosmic large-scale structure on the map" today. Looking forward to a week of discussions around extracting the maximum of cosmological information from astronomical observations. Amazing support by the ESI team. Thanks!

Climbing Vera Rubin Ridge - sol 2098 - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/28Mk2cx

Spiral, elliptical or neither? 🤔 The latest image from the NASA/ESA Hubble Space Telescope features a hard-to-categorise galaxy, NGC 2775. It has features of both elliptical and spiral galaxies – so what type is it? Read more 👉 esahubble.org/images/potw2... 🔭

A cloudy afternoon, or what passes for a cloudy afternoon, on Mars yestersol (Sol 1631) from the Mars Perseverance Rover. flic.kr/p/2ruPqK9

Broccoli, Xenomorph, Dinosaur bone: pareidolias galore spotted by Mars Guy in these unusual rocks captured by Perseverance! www.youtube.com/watch?v=KVOa... #Mars @pareidolia.bsky.social

This is amazingly awesome news. VIPER rises phoenix-like from the ashes! (Sorry for the amateur poetry imagery). www.nasa.gov/news-release...

Namib dune - sol 1192 - From Thomas Appéré (thomasappere.bsky.social) - https://flic.kr/p/2k4AGim

Broccoli, Xenomorph, Dinosaur bone: pareidolias galore spotted by Mars Guy in these unusual rocks captured by Perseverance! www.youtube.com/watch?v=KVOa... #Mars @pareidolia.bsky.social

M110, aka NGC205, has a "wallflower existence" in Messier's famous catalogue. Although originally observed by Charles Messier in 1773, it never made it to his catalogue until it was added as its last entry not earlier than 1966! bit.ly/4lB3t…🔭#astrophotography🔭📷

Awesome Stereo3D view of this strange rock spotted by the Mars rover Perseverance To go 3D: eyes' lines of sight parallel, left image for left eye, right image for right eye. #Mars Sep. 19, 2025 - Sol 1629 🧪🔭 Credits: NASA/JPL-Caltech/ASU

IC 348 with #JWST NIRCam. It belongs to the Perseus molecular cloud. It is a young star-forming regon, which is slightly closer than the Orion Nebula. #astronomy Additional images in the thread 🧵 My image processing from today. Full resolution image: commons.wikimedia.org/wiki/File:IC...

James #Webb Space Telescope #JWST A Survey for Free-floating Brown Dwarfs and Planets Down to the Mass of Jupiter TARG: #IC348 2024-09-16 PI: Luhman, Kevin NIRCam f444w f360m f182m yuval-harpaz.github.io/astro/jwst_l... NASA/ESA/CSA/STScI/j. Roger

A pair of interesting rocks imaged by the Mars Perseverance Rover on Sol 1629. flic.kr/p/2ruxMqK flic.kr/p/2ruyi9J

This should surprise no one who's been paying attention. spacenews.com/nasa-safety-...

Mars Perseverance - Sol 1629 Other processing method/colour enhanced - not photometrically calibrated. Image Credit: NASA/JPL-Caltech/ASU/MSSS/Thomas Thomopoulos

🔴 #Mars #Perseverance Sol 1629: Right #Mastcam-Z Camera / enhanced Sept. 19, 2025 (Sol 1629), 12:15:47 source image: mars.nasa.gov/mars2020/mul... Image Credit: #NASA / #JPL-Caltech / #ASU / Jackie Branc #RedPlanet

I want a Star Trek series centered around the Klingons. Maybe set it pre-Earth/Federation contact. Deep dive into their culture. Or maybe just an entire series that is a deeply extended version of ST:TNG “A Matter of Honor”, S2, E8. I think a Klingon series that is pre-Federation is cooler though.

Spooky rock garden, captured yesterday by Perseverance ▶️ zoom app zoomhub.net/3peyG ▶️ Flickr flic.kr/p/2rutDzi #Mars Sep. 19, 2025 - Sol 1629 🧪🔭 Credits: NASA/JPL-Caltech/ASU

Woohoo! *Finally* the Apollo 10 capsule - the only Apollo capsule not in the US - is in the (new, free) *space* gallery at the Science Museum. I’ve waited a long time for this.

NASA Mars Perseverance Rover at Jezero crater Sol 1629 (19th September, 2025) Ventifacts at Megabreccia MastCam-Z (right) ZCAM09712 Site 79 / 488 📷 Credits: NASA / JPL-Caltech / ASU / MSSS / Martian-Observer www.flickr.com/photos/13433...

These yardangs keep on giving!!! 😍

MSL 4656 ML © NASA/JPL-Caltech/MSSS/NeV-T 360-VR - www.360cities.net/image/msl-46... GIGAmacro - viewer.gigamacro.com/view/YMGMCOj... Gigapan Website - www.nev-t-gigamacros.com #Mars #science #NASA

MSL 4650-4663 CC © NASA/JPL-Caltech/MSSS/NeV-T GIGAmacro - viewer.gigamacro.com/view/dl08djG... Gigapan Website - www.nev-t-gigamacros.com #Mars #science #NASA

Glorious!

🔴 #Mars #Perseverance Sol 1629: Right #Mastcam-Z Camera / enhanced Sept. 19, 2025 (Sol 1629), 12:12:53 source image: mars.nasa.gov/mars2020/mul... Image Credit: #NASA / #JPL-Caltech / #ASU / Jackie Branc #RedPlanet

Spooky rock garden, captured yesterday by Perseverance ▶️ zoom app zoomhub.net/3peyG ▶️ Flickr flic.kr/p/2rutDzi #Mars Sep. 19, 2025 - Sol 1629 🧪🔭 Credits: NASA/JPL-Caltech/ASU

Awesome Stereo3D view of this strange rock spotted by the Mars rover Perseverance To go 3D: eyes' lines of sight parallel, left image for left eye, right image for right eye. #Mars Sep. 19, 2025 - Sol 1629 🧪🔭 Credits: NASA/JPL-Caltech/ASU

The sunrise on the rim of Jezero Crater #Mars Sep. 19, 2025 - Sol 1629 Credit: NASA/JPL-Caltech 🧪🔭

Check out this U. of Chicago podcast with Edwin Kite offering insights on climate and life on Mars, the Mars Sample Return mission, a transformative scaled up version of Ingenuity that can fly hundreds of kilometers, and more! @edwinkite.bsky.social news.uchicago.edu/big-brains-p... 🧪🔭 #Mars

👀 incoming Mastcam mosaic / Stereo3D view of this most peculiar rock. Stay tuned! rkinnett.github.io/roverpics/?m... @rkinnett.bsky.social #Mars 🧪 #PlanetSci

Ten years ago @ligo.org detected gravitational waves for the first time. I visited LIGO to retrace this historic discovery, which changed not only our understanding of the universe, but our understanding of perception itself. My latest column: 🧪🔭 invisibleuniverse.substack.com/p/the-day-we...

La conjonction Lune-Vénus-Régulus, ce matin, 19 septembre, au ras des toits... Images prises au reflex numérique EOS 40D, avec un objectif de 135 mm ouvert à 5.6. Poses d'une seconde à 400 ISO.

Découverte est de retour pour une 38e saison! À voir ce dimanche... Le démantèlement de la science aux États-Unis se répercute au Canada. En santé. En environnement. Nous avons été témoins de la colère des scientifiques, de leur détresse, mais aussi de leur détermination à défendre la vérité.

Celestial alignment captured by @peterlewis55.bsky.social this afternoon! Behold the Moon, on its journey around the Earth, moving to temporarily block out the light from planet Venus. 🔭🧪 Absolutely cracking photos Peter - thanks so much for sharing!

This morning the Moon, Venus and the bright star Regulus rose as a tight grouping before dawn. It was a striking sight in the clear pre dawn skies, with the air having been cleaned by a thunderstorm that had passed through the area last night.

La mécanique céleste en marche. Par ici la vidéo de Vénus disparaissant derrière la Lune bsky.app/profile/ciel...

Mais prudence, seule une analyse d’échantillons sur Terre pourra confirmer ou non cette hypothèse. ⁠ ➡️ https://l.franceculture.fr/eBP

Martian image that went beautifully wrong Perseverance Sol 1628 - Sep. 18, 2025 Credit: NASA/JPL-Caltech #Mars

Occultation imminente

Curiosity MSL: sol 4662 workspace views (Mastcam and Navcam), rover stats and traverse maps - thanks to @paulhammond1.bsky.social

Et c'est parti. Avec @jldauvergne.bsky.social et @philhena.bsky.social

Le Mirage 2000 fête ses 40 ans www.francebleu.fr/infos/societ...

Timelapse of JPL's Table Mountain Facility Beaming Laser Beacon to Psyche The spacecraft was about 230 million kilometers from Earth at the time. Credit: NASA/JPL-Caltech 🧪🔭 www.jpl.nasa.gov/images/pia26...

Superbe roche observée récemment par le rover martien #Perseverance, actuellement dans une zone où se trouvent d'intéressant fragments rocheux probablement issus d'une chute d'astéroïde.