R. John Chryslar

Aerospace Engineer, freedom fighter, KSP, loves human spaceflight, lecturer, space & STEM book author, artist, architecture lover and proud patriot.

[Axiom Space @Axiom_Space]

Training for geological exploration of the Moon starts underwater.🌙

For the first time in the @NASAArtemis program, two @NASA exploration geologists and Artemis science officers suited up together for a lunar training development session in NASA’s Neutral Buoyancy Laboratory @NASAJohnson. Side by side, they tested our prototype geology tools and deployed a mock lunar payload under low-angle lighting, mirroring the extreme environment of the lunar South Pole.

Training like this is helping pave the way for Artemis IV, the mission that will return astronauts to the lunar surface for the first time in more than 50 years.

[Don Pettit @astro_Pettit]

I finally have all 1.2 million raw image files from my latest mission to ISS! Here is a sample of one of my favorite Milky Way photos, taken from the Cupola with Nikon Z9, Arri Zeiss 15mm lens, T1.8 with custom sidereal drive that cancelled out star motion relative to our orbit.

[Elon Musk @elonmusk]

We’re sending a ship out to recover Starship

[SpaceX @SpaceX]

The Starship Recovery team has continued gathering imagery of the vehicle, which is still afloat in the Indian Ocean

[Starbase Surfer @cnunezimages]

July 24, 2026

[Michael France @michaelsrockets]

Wow.

[Andrew McCarthy @AJamesMcCarthy]

Liftoff! Starship is now in space!

[Andrew McCarthy @AJamesMcCarthy]

Going for a photo even cooler than this on Thursday 👀

[NASA History Office @NASAhistory]

The 135th and final shuttle launch! 🚀

July 8 marks the 15th anniversary of the historic final launch of NASA's 30-year Space Shuttle Program. With its crew of 4 astronauts, Atlantis lifted off at 11:29 am to begin STS-135, its last journey to the International Space Station.

[World Tech Center @ChicagoWTC]

Happy 250th, America! 🇺🇸
Our introductory showcase video about our vision has been published. https://t.co/BfhThknRHn

[R. John Chryslar @Astro_Chryslar]

🇺🇸God bless the USA 🇺🇸

[The White House @WhiteHouse]

HAPPY 250TH AMERICA!!!!

[Elon Musk @elonmusk]

Yes

[Patrik Büchler @patrik_buchler]

Last time seeing 92-9000 as Air Force One. We couldn't hope for a better light.
VC-25A (Air Force One) 🇺🇸
USAF 92-9000 🇺🇸
Geneva Airport GVA/LSGG 🇨🇭
17 June 2026

[The White House @WhiteHouse]

The water is ON, the Reflecting Pool is reflecting, and D.C. is looking better than ever.

We are so back. THANK YOU, PRESIDENT TRUMP. 🇺🇸

[IGW @interstellargw]

Starship Flight 12 | All Camera Views
(Full + Slow Speed Footage Compilation)

[Dave Limp @davill]

Some LC-36 updates. Now that we’ve had access to the pad and integration facility we can share a bit of good news. The propellant farm, oxygen, liquid hydrogen and LNG tanks are all in good shape. This is good luck because these are very long lead items. The water tower is also good. The big support tower is damaged, but it can be repaired in place rather than torn down and replaced. The booster “Never Tell Me The Odds” and the three GS-2s that were onsite in the integration facility also look good.

I’ve seen some speculation that we might move directly to the 9x4 configuration, but we won’t do that. Rate manufacturing of 7x2 is going well, and we’re going to continue that at pace as planned and store the stages for use. In addition, we had already been working for some time on eliminating our transporter-erector in favor of an alternative vertical conop, and we’ll now go directly to that; so we don’t need a new transporter-erector.

We will fly again before the end of this year. Gradatim Ferociter.

[Truthful🛰️ @Truthful_ast]

We will fly again before the end of this year. - Dave Limp, CEO of Blue Origin

GRAAAHHH

[MAGA Voice @MAGAVoice]

DON’T CARE WHAT ANYBODY SAYS. IM CALLING JUNE VETERANS MONTH. HERES MY PRIDE FLAG

[Elon Musk @elonmusk]

Bound to happen

[SpaceX @SpaceX]

Falcon 9 launches 24 @Starlink satellites from California