Attends, en terme d'envergure le Stratolaunch est plus grand que le H-4! Et c'est un avion très utile qui vole beaucoup, si si je jure!
22.02.2026 19:00
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Attends, en terme d'envergure le Stratolaunch est plus grand que le H-4! Et c'est un avion très utile qui vole beaucoup, si si je jure!
Dans un thème similaire cette vidéo marrante de XKCD qui explore un peu l'idée des rois mages suivant la direction d'une étoile fixe
youtu.be/YL2VNtus4xk
Bracket for "BSky Planetary Science Image of 2025" contest, featuring small icons of 16 images grouped into four quarter-finals. There are semi-finalists and finalist placeholders against a lunar surface backdrop.
2nd quarter-final of ✨ #planetaryScience image of 2025 ✨
This round features the Moon and Mercury 🧪⚛️
🗳️ Voting ends on Friday, Dec. 12, at 3 p.m. UTC/4 p.m. CET/10 a.m. EST/7 a.m. PST/midnight JST.
🔽 The voting can be found after the fourth image.
Here come the next four quarter finalists 🌔
The California Nebula, in the middle of the image, is visible and mostly pink. Captured with 215x30s exposures at ISO3200 at 240mm focal length.
The Orion constellation rising behind one of the 1.5m telescopes at Calar Alto.
Sunset at Calar Alto, centered on one of the telescope's cupola.
Some astrophotography recently from Calar Alto!
On en parle des USA entre 2011 et 2020?
Glad you got yourself one ☺️
Introduce yourself with four spaceships.
Blender Foundation and the online developer community proudly present Blender 5.0!
ACES, Adaptive Subdivision, HDR, Storyboarding, Geometry Nodes, 588 bugs fixed, and so much more.
📖 Changelog & Download: blender.org/download/rel...
📺 Video Recap: www.youtube.com/watch?v=4wEq... #b3d
Best free software ever <3
Illustration showing spacecraft A, probe B1 built by JAXA and probe B2, and the suite of instruments they each carry, alongside other important components. The instruments and parts are colour coded according to four categories: blue for Dust, Fields and Plasma (DFP) instrument suite, orange for Plasma instrument suite, red for other scientific instruments, and green for important components.
#CometInterceptor will be the first mission to visit a comet coming directly from the outer reaches of the Sun's realm, carrying material untouched since the dawn of the Solar System.
Part of #CosmicVision, Comet Interceptor is an ESA-led mission in collaboration with JAXA.
1/ #CM25 🔭
Apparent Angle Evolution of the Comet’s Ion Tail (C/2025 A6 (Lemmon))
AstroBin's Image of the Day: "Apparent Angle Evolution of the Comet’s Ion Tail (C/2025 A6 (Lemmon))" by Julien De Winter and Victor
www.astrobin.com/l7210y/
#astrophotography
The comet A6 / Lemmon in front of a rich star sky. Both tails are faintly visible, the comet's halo is slightly green.
and the resulting image stacking on these same 97 frames
My take on comet C2025 / Lemmon one week ago from southern Sweden. 97 exposures of 1min each, 280mm equivalent focal length.
Impressive for an untracked shot!!
📸🔭 October promises to be spectacular for comets:
☄️ C/2025 A6 (Lemmon) will reach magnitude 3–2 and be visible to the naked eye in dark skies.
☄️ C/2025 R2 (SWAN) will shine in binoculars, with long ion tails in photos.
We’ll keep following them day by day on these feeds so you don’t miss the show ✨
Powering up: how Ethiopia is becoming an unlikely leader in the electric vehicle revolution
Ah si trouvé :)
Il est dûr celui là! Je l'ai pas encore...
Communiqué AFP Gaza
Communiqué de la SDJ de l'AFP à propos de ses journalistes à Gaza :
"Depuis que l’AFP a été fondée, nous avons perdu des journalistes dans des conflits, [...], mais aucun de nous n’a le souvenir d’avoir vu un collaborateur mourir de faim.
Nous refusons de les voir mourir."
Such an interstellar comet would be an appealing – albeit unlikely – target for our Comet Interceptor mission, which is more likely to visit a pristine comet from the distant Oort Cloud that surrounds our Solar System.
More on Comet Interceptor 👉 www.esa.int/Science_Expl...
On peut faire mieux, on envoie une sonde qui poireaute 12000ans pour attendre l'apogée, la ralentit de qq 50taines de m/s, et après une complexe assistance gravitationnelle interplanétaire, elle rentre en orbite terrestre et devient Lune 2
☄️ #CometInterceptor will target a pristine comet entering the inner Solar System for the first time.
The mission will investigate if these comets are different from the ones we know and if they contributed to the appearance of life on Earth, among others.
Read more 👉 www.esa.int/Science_Expl... 🔭
☄️ Notre mission #CometInterceptor ciblera une comète qui pénètre pour la 1ère fois dans le Système solaire interne afin de déterminer si ces comètes sont différentes de celles que nous connaissons et si elles ont contribué, par ex, à l'apparition de la vie sur Terre.
🔗 www.esa.int/Science_Expl...
The image presents a dark background dominated by a series of concentric circles representing distances in thousands of kilometers (km). These circles are subtly colored in shades of teal/blue. A bright white line cuts across these circles diagonally, representing the path or trajectory of the Lucy spacecraft. A small green dot marks the "point of closest approach" of the Lucy with asteroid Donaldjohanson. At the top right, a light gray line shows the trajectory of asteroid Donaldjohanson (DJ). At the top left, text indicates the "Encounter Mode" with a small red dot possibly showing "live updates." Further text displays the name of the asteroid (Donaldjohanson), data about the encounter, including the date and time, the distance, and the phase angle. A rectangular box in the lower right contains additional information about the observation, specifically the field of view of the L'LORRI instrument and the apparent size of the object in pixels. The box also clarifies that the object's shape and exact size are not precisely known, providing an estimated diameter of 3-5 km, citing a source ("Masiero et al. 2011").
ONE hour to the closest approach of Lucy with #asteroid (52246) Donaldjohanson [DJ].
↔️ current distance to DJ: 48 thousand km
☀️ current phase angle: 13.41°
🪨 estimated size of DJ on L'LORRI camera: 12-21 pixels
▶️ www.whereIsLucy.space
🚨 Two days to Lucy's encounter with asteroid Donaldjohanson (DJ) 🚨
NASA's Lucy spacecraft will fly by DJ on Sunday, April 20, 2025 at 17:51 UTC (2:51 a.m. JST/10:51 a.m. PDT/11:51 a.m. MDT/1:51 p.m. EDT/19:51 CEST).
You can follow the encounter on whereIsLucy.space
🧵 1/6
#PlanetSci #SciComm
TOMORROW April 5, we’re uniting to say HANDS OFF! Join citizens across the country to fight back against Trump’s unprecedented incompetence & blatant criminality.
DO IT FOR THE PENGUINS!
Go to app.sosha.ai/s/mkKNZwsa
Video of the Isar Aerospace "Full Spectrum" Launch at Andøya. 📸 video: @isaraerospace / @AndoyaSpace
Video of the fall-back to earth, I hope the launch-pad is ok....
Good luck to Isar Aerospace getting back up there !
source: tv.vg.no/nyheter/se-d...
Let's hope there is no major damage to the launch site
Kaboom 😭
