A lot of people are still surprised that Mars has clouds, so here’s an album with a few more photos of Martian clouds for the skeptics :) flic.kr/s/aHBqjCUfY1 🧪🔭

Mars - Clouds over Terra Cimmeria - ESA Mars Express HRSC Full size 5k image: flic.kr/p/2sdpsHP 🔭🧪 Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY 2025-07-24 South is up HR211_0000 ND3+GR3+BL3

vimeo.com/1192785015 Animation crossfading between a canal map of Mars, and a modern CGI map, so you can see how the "canals" line up with real features. By me. 2 views, above North and South poles of Mars.

Curiosity Blog, Sols 4886-4892: Ingenuity and Perseverance, Curiosity Style "While we know the monikers Ingenuity and Perseverance are attached to our sister helicopter and rover on the Mars 2020 mission, those characteristics were in full force with Curiosity over the past week." #Mars 🧪🔭

Mars Perseverance rover turns up a sticky find Mars Guy Episode 265 / 3rd May, 2026

Rock off. 🤘

🚀 Have you perhaps wondered how the process of producing Andrea Luck’s @andrealuck.bsky.social stunning images of Phobos against the backdrop of Mars—taking into account their relative motion—actually works? 🤭 I have a hypothesis 🔭 I recommend Andrea's album "Phobos" on flickr: flic.kr/s/aHBqjAvrQL

Merging galaxies NGC-4567 and NGC-4568, imaged from Stony Ridge Observatory on Tuesday night. 🔭 30” f/6, 1 hr integration #Astrophotography

Artemis II doesn’t reverse direction like its ground track implies. Far out, its motion is mostly radial (toward Earth), so its small eastward speed is slower than Earth’s rotation, so it appears to drift west. Closer in, tangential speed grows and overtakes Earth’s rotation, so it moves east.

Amazing views of the Artemis II launch filmed from NASA's WB-57 high altitude aircraft 🔭🧪 #Artemis Full duration on YouTube: youtu.be/pa-dMk2VnUg

In addition to sending folks to circle the Moon, NASA will be launching a telescope (the Nancy Grace Roman Space Telescope) later this year that has Hubble-quality images over a field of view that is ~100x bigger: 🧪 science.nasa.gov/mission/roma...

Holy shit, the tracking on this video for the Artemis II launch, is something you all should watch. It gives such a good view of the separation of the solar array covers and launch abort system. www.youtube.com/watch?v=kFKd...

Posting this here because @nasaspaceflight.com hasn't yet NASA's engineering cameras for #Artemis2 images-assets.nasa.gov/video/KSC-20...

First day Doppler analysis of Artemis II.

From NASA From the Moon, a lunar eclipse looks like a total solar eclipse, but it lasts a LOT longer. For NASA's Lunar Reconnaissance Orbiter, that means the team has to plan carefully for the 4 hours that the spacecraft — and its solar panels — will be in the dark and the cold. 🌑🛰

oh NO

Alerts are flowing from Rubin Observatory! There will be a proper press release in the coming hours, please see all the details then, and meanwhile, your favorite alert broker probably has public data available to peruse *now*! We are up to well over 20k alerts after 20 min on sky 🔭

Excerpts from a NASA public info publication in my collection. This one, published by NASA in 1972, features the distinctive artwork of Robert McCall. Pre-Internet, these were a major means by which NASA informed the public. I post one of these in its entirety on my Patreon every Sunday.

Meanwhile at NASA JSC, Blue Origin MK1 lunar lander, has entered Chamber A for approximately 11 days of TVAC Source: David Limp on the other site.

I revisited my parallel IK system for the first time in awhile to make some ergonomic improvements & got perf improved by over 50% in some cases 🦾🤖 I still have some more improvements in mind, though, when I have some more time. Repo link below 👇 #threejs #webgl #robotics

Blue Origin halts New Shepard flights Blue Origin announced Jan. 30 that it will halt flights of its New Shepard suborbital vehicle for at least two years as it shifts its focus to human lunar exploration.

Still no date for WDR or launch, but Artemis II crew is getting ready. Entered quarantine on Friday in Houston. Pending outcome of WDR or other operations considerations they can come out and reenter 14 days before any launch date, flying to KSC 6 days before launch. www.nasa.gov/blogs/missio...

NASA Selects Participants to Track Artemis II Mission. www.nasa.gov/technology/s...

Estes and Blue Origin have been cooking! 👀👀👀👀👀👀👀 estesrockets.com/products/new...

Good chance for #Aurora tonight! I’ll be somewhere in Angeles Forest with cameras ready.

We're going back.

In the difficult years ahead, we should remember that the snows of Olympus lie silent beneath the stars, waiting for our grandchildren. - Arthur C. Clarke

Happy Perihelion Day! Today Earth reaches the closest point to the Sun in its orbit. Here are two images I took of the Sun last year showing that the Sun does indeed look a bit bigger in January when we are closest to the Sun than it does in July when we are farthest. 🔭

Highlights from my space-related endeavors of 2025. New job (same company), observed Supernova SN2025rbs & Comet 3I-ATLAS, & co-discovered a near-Earth object with my kids. Not shown: countless hours developing a telescope dome control system & hunting for asteroids ☄️ #astrophotography 🔭 🧪

Happy holidays from Stony Ridge Observatory! #Astrophotography 🔭 🧪

I have been neglecting Uranus system for a long time now. So I decided to change that. Here's Uranus and Miranda visible above the canyons of Ariel. #SciArt #spaceart #astronomy #solarsystem #Uranus

Caught the faintest, brief glimpse of #aurora tonight. It was barely detectable by camera for 5 minutes and wasn’t much to look at, but I’m counting it. This was my 5th sighting from Los Angeles County, at 34N latitude. Observed at 6:30 PST (2:30 UTC, Dec 11, 2025), looking NNE. 🔭 🧪

Amazing 3-D effect in this JWST image of the tip of HH 49/50. The dusty tip of this nearby "cosmic tornado" is so thin that it allows a more distant spiral galaxy to shine through (science.nasa.gov/asset/webb/h...) More info in this Sci-Am story: www.scientificamerican.com/article/cosm...

This is a spectacular view of the fiery descent and failed landing attempt of the Zhuque-3 first stage. m.weibo.cn/detail/52397...

NASA has completed the construction of #NASARoman! Last month, technicians joined the inner and outer portions of the observatory in Maryland. After final testing, Roman will move to the launch site at the Kennedy Space Center for launch preparations in summer 2026: https://go.nasa.gov/48EqnE8 🔭 🧪

Astronaut photography is published to eol.jsc.nasa.gov/SearchPhotos/ where you can search and download the images. They also have a search API at eol.jsc.nasa.gov/SearchPhotos... If you'd like to automate stuff. The API doesn't do downloading though, especially not for the RAW files.

#OTD 3️⃣0️⃣ years ago, 2 December 1995, launch of the joint ESA/NASA Solar and Heliospheric Observatory (SOHO). Originally designed for a two-year mission to study the Sun, it was extended multiple times and is still operational 🧪🔭 www.esa.int/Science_Expl... @science.esa.int @americaspace.bsky.social

Absolutely insane photo from the ISS this week. Cygnus was temporarily released from the station and held in place by Canadarm2 to provide more clearance for the Soyuz MS-28 spacecraft to dock to the ISS.

Today on the ISS, for the first time ever, all 8 available Visiting Vehicle ports (x4 on Russian Segment, x2 berthing and x2 docking on US Segment) are in use simultaneously! (Image credit: orbital-velocity.com)

From Copernicus: This shows how the expected date for breaching 1.5C has been creeping ever closer in recent years. The orange date shows the baseline for the extrapolation; the red date shows when 1.5C is breached based on the trend...

Next up this evening. ISS passes over Europe. A nice long overhead pass for viewers in France and Italy. For viewers in UK, Belgium, Germany and Austria a chance to view ISS occulting Saturn... For times and maps, view skycalpro.com #Astronomy #ISS

Nice panoramic Mastcam mosaic incoming from Perseverance marslife.org #Mars Nov. 25, 2025 - Sol 1694 🧪🔭 Credit: NASA/JPL-Caltech/MSSS/ASU/MarsLife

Introduce yourself with four spaceships

Today’s xkcd made me cry. In a good way. xkcd.com/3172/

One thing photos don't capture is the awesome immensity of these structures filling the sky, bridging the boundary between Earth and space.

'Light Fantastic' 21,837 images across 18 time-lapse sequences photographed by Don Pettit & Butch Wilmore are repaired, remastered and retimed to create 3x real time video footage. Credit: Butch Wilmore / Don Pettit / ISS / NASA / ESRS / Seán Doran www.youtube.com/watch?v=0cKk...

Perseverance rover looks back after long drive to the southwest during November 17, 2025 (Sol 1686). The traverse distance was 285m (936ft), with a climb of 8.7m (28ft), drive duration was 220 minutes. Attached is a roughly processed tiled NavCam and the drive […] [Original post on fosstodon.org]

LET’S GOOOO!!!!! 🚀🌖 Next stop: the Moon!!!

Ha! It looks like Avi Loeb silently edited his Medium post about the Perseverance Navcam images, after being called out for his wrong interpretation. While he previously claimed the image was of 3I/Atlas, he now says the claim came from "social media". 🔭

For the first time ever, astronomers have unveiled the shape of a supernova explosion just a day after detection, as the blast was breaking through the star’s surface. Achieved by our VLT, this feat will help us understand how massive stars die: https://www.eso.org/public/news/eso2520/ 🔭 🧪 ☄️