I've very happy to see Real Engineering's (@brianmcmanus.bsky.social) video on the X-59 QueSST exceed 2m views! youtu.be/6B96xetwrqI

A spacewalk scene over an asteroid mining operation, created using @gtgraphics.bsky.social's kitbash asset set. #space #art www.artstation.com/artwork/wrgb46

Did Mars lose all of its water to space, or did it get frozen, buried and absorbed by crustal hydration? 30-99% of the Mars' original oceans could be recovered from the subsurface, equivalent to a global depth of 100-1500 m! static1.squarespace.com/static/5ba27...

An incredibly bright source of light from the Cosmic Dawn of the Universe, with its short wavelengths missing? MoM-BH*-1 is a black hole undergoing an active super-Eddington burst while shrouded in gas: www.nature.com/articles/s41...

What's smaller and lighter than a dirty buggy? A dirt bike. NASA considered an electric lunar bike for Apollo, including putting it through low gravity testing.

China's QLU-11 is a unique "grenade-launching sniper rifle" with laser rangefinder and ballistic computer. It fires a 35mm grenade at 320 m/s accurately enough to target a window or door from 1000m. The LG5 export version uses NATO-standard 40x53mm ammunition.

The Robotic Asteroid Prospector using solar thermal propulsion with mirrors that double as concentrators for thermal mining: spacearchitect.org/pubs/AIAA-20... 'Spider' bots use articulating legs to help match mining equipment to the uneven microgravity surface of an asteroid.

A railgun mass driver on the Moon, explained by AnthroFuturism: youtu.be/QdVMfmf5AbM The landing pad doubling as launch armature is a lot of dead weight to accelerate, but that's fine if the 'wasted' energy is recovered by regenerative braking at the end of the track.

The Yakovlev-201, a single-engine naval VTOL fighter with stealth features, meant to succeed the Yak-141s but never got seriously funded. #art by Tim Samedov. www.artstation.com/artwork/K3A8WB

Laser-Plasma Wakefield Accelerator feeding a Free Electron Laser, with DRACO's IR beam as input and 272nm UV as output, operating in a high-gain high-quality seeded regime. Article: phys.org/news/2026-09... Paper: journals.aps.org/prl/abstract...

Vaalbara is thought to be Earth's earliest supercontinent. It's formed of cratons (stable pieces of continents) up to 3.6 billion years old with palaeomagnetic and asteroid impact traces that line up today. en.wikipedia.org/wiki/Vaalbara Illustrated: olivermcrae.artstation.com/projects/lVb...

Cover art for 'Corsairs', a wargame, and animation test of a clunky old space warship bristling with laser turrets and missile launchers. #space #art by Charles Oines. www.artstation.com/artwork/lG25WJ

An automated factory for humanoid robots; visual development concept art for "Project World One" by Worlds Untold Studios. #art by James Nguyen. www.artstation.com/artwork/V82LnP

Since production started 18 years ago, Lockheed Martin has produced only 12 THAAD batteries. AN/TPY-2 radars with 2000+ km range and exoatmospheric interceptors (48 x $12m = $576m) add to costs but it's low production volume that raises each battery to $1.5 - 2 billion...

The Sky Sabre is the UK's newest short-range air defence system, using several MAN HX77 trucks including an MBDA Land Ceptor launcher for CAMM missiles and Saab Giraffe AMB radar on a 12m tall mast, firing on up to 8 targets at 25-45 km range.

Canon's approach to nanoimprint lithography, leveraging its printer experience: youtu.be/UATjUgzGTl4

Concept art and exploration for a Biohazard Suit for Gareth Edwards' "The Creator". #art by Weta Workshop. www.artstation.com/artwork/39Dv4B

If you believe space resources will become critical to space control, then you cannot allow one country to land on them first and take them. Similarly with a corporation arriving first and blocking out all competition. Jeff Greason's thoughts on this: reason.com/2026/10/05/w...

NASA's F-15 and F/A-18 went full 'stars and stripes' for the Freedom 250 flyover. Gallery: www.nasa.gov/gallery/free...

"A Gentle Landing", a scene from an Advanced Hardware Design class. #space #art by Michal Kus www.artstation.com/artwork/rJ3qR2

Before Grumman's Tomcat, there was a Jaguar: the XF10F. The first swing-wing fighter, it demonstrated the technology could take off from a carrier... but it was held back by its severely underpowered 30 kN XJ40-WE-8 engine, leading to its cancellation within the year.

A space reactor calculator in your browser by @tylerraiz.bsky.social : raizspace.com/calculators/... The performance assumptions are modest but it's a good reference for how existing nuclear technology scales.

If you encircled the Earth with a particle accelerator and used the strongest magnets available, then you'd unlock 100,000 TeV energies. But to access the Grand Unified Theory scale, you'd need a hundred million times more energy than that... bigthink.com/starts-with-...

This is how the Bucyrus Erie 2570W Electric Dragline walks: youtu.be/LKbyQwnfucw It's 6200 tons, powered by a 22,900V cable supplying up to 10-30 MW. From Buildwitt's excellent video on North American Coal's stip mining operation at the 'Freedom Mine'.

The X-24A, M2-F3 and HL-10: a line-up of NASA's wingless lifting body research craft. www.dvidshub.net/image/749813...

MDAA's proposal for a ballistic missile defence ship based on the LPD-17 hull (San Antonio-class), sporting a 10m tall radar array and 288 VLS cells for ocean-spanning coverage. www.missiledefenseadvocacy.org/defense-syst...

Is the M116 75mm howitzer the oldest artillery piece still in active service? 100 years ago, in 1927, it was standardized as "howitzer, pack, 75mm M1 on carriage M1". It was used in combat in 2010, and still serves as a ceremonial or anti-avalanche gun today.

Going on space walk will remain exhilarating for a very long time. But more and more people could experience it for themselves over the years. #space #art by mangamie. www.deviantart.com/mangamie/art...

The RTL-2 military transport from 'Thunderbirds'. #art by matteline67 www.deviantart.com/matteline67/...

Grumman's cats, from the Wildcat to the Tomcat. #art by DouglasCastleman www.deviantart.com/douglascastl...