Measuring the Big Bang with the COBE satellite https://t.co/gJB6QAzHt0 4 min read Measuring the Big Bang with the COBE satellite By John Mather The Cosmic Background Explorer satellite (COBE) went up on a Delta rocket on Nov. 18, 1989, into a polar … https://t.co/JdggJtOm3u
42 Years of Measuring the Sun, the Earth and the Energy in Between https://t.co/uZalndm6yv 5 min read 42 Years of Measuring the Sun, the Earth and the Energy in Between By Denise Lineberry NASA’s Earth Radiation Budget Satellite (ERBS), a part of th…...
The Sky Belongs to All of Us https://t.co/n9KwxP7yJV 6 min read The Sky Belongs to All of Us By Hashima Hasan How did a little girl born in India soon after its independence from the British Empire, become a program scientist for NASA’s...
Boeing just announced the move of its defense unit HQ back to St. Louis, where McDonnell Douglas was headquartered (and where Boeing continues to build fighters and weapons). Industry always welcomes a SecDef visit but real question for workforce will be...

New design (left). First Trump admin (right). Much larger flag on the tail, different color on the engines--possibly related to the thermal concerns raised a couple years back. https://t.co/e5GPwczads
Major Deployment Of Rickety E-3 Sentry Fleet For Iran Crisis Highlights Worrisome Gaps The shrunken E-3 fleet isn't getting any younger, and a replacement is still far off while demand for its services would be far greater in the Pacific. Story: https://t.co/bX9Y8kMlqE
Great opportunity for a 2-year post doctoral position at the Swedish Defence University here for those working on uncrewed systems: https://t.co/CYy5Wnh91N
NASA to Provide Coverage of Artemis II Wet Dress Rehearsal https://t.co/rxwM8XMwP3 The Moon rises behind NASA’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft atop a mobile launcher at Launch Complex 39B at NASA’s Kennedy Space Center… https://t.co/eqMQkf9VGf
Perseverance Pinpoints Its Location at ‘Mala Mala’ https://t.co/WAn1uwS0AO 2 Min Read Perseverance Pinpoints Its Location at ‘Mala Mala’ PIA26704 Credits: NASA/JPL-Caltech Photojournal Navigation Science Photojournal … https://t.co/uIsjK8MVSg

EU Commission @defis_eu: Iris2 capacity to be free for EU govts, whose comms will be confidential, not shared w/ others. In time of crisis, non-govt users will be preempted. @esa @EUDefenceAgency @EU4Space. @SESSpaceDefense @EutelsatGroup @Hispasat.https://t.co/QFF3UPPXsq https://t.co/56rvMAcqIo
You see the timeline for movements for the Iranian contingency. Also the size of the force available. Now think about China turning one of their big 'exercises' into a sudden invasion of Taiwan. Yes things can be sped up, but...

Delta just had to turn Flight 2557 (Houston Hobby to Atlanta) right back around after takeoff this morning. 85 passengers on a Boeing 717, one guy starts acting unruly and unlawful toward others. He approached crew/passengers but Delta confirms zero...
NASA’s Perseverance Now Autonomously Pinpoints Its Location on Mars https://t.co/8qoxW8kBAC 7 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) There is no GPS at the Red Planet, but a new technology called Mars Global Loc… https://t.co/97K7QBdDE0
I Am Artemis: Katie Oriti https://t.co/LcpoLSwKgP 3 Min Read I Am Artemis: Katie Oriti Katie Oriti manages the Orion European Service Module Integration Office, working closely with commercial and international partners to ensure the m… https://t.co/vbUCwAW7zC

A Fatal Misunderstanding During This Flight Affected Aviation Forever… TWA Flight 514 (Part 1) #aviation #airplane #pilot #planes #mentourpilot

European missile maker @MBDAGroup on building a sovereign, interoperable military space network. @defis_eu #EuropeanSpaceConf. https://t.co/EXzbZr66rT https://t.co/EA9DMPiTXE
NASA’s Hubble Identifies One of Darkest Known Galaxies https://t.co/CCUrV0EXzB Explore Hubble Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impa… https://t.co/abJljA2mN4

TechEdSat-11 was a 6UXL cubesat from NASA-Ames and San Jose State to test an exobrake drag device, launched on 2024 Jul 4. It reentered Feb 15; the decay rate increased sharply on Jan 16, likely marking the exobrake deployment. https://t.co/qEcoxQwW7c
Cool video round-up of yesterday's Fireside Chat by @ChiefofAirStaff at RAeS HQ. #avgeek #defence https://t.co/2UyfTpsJ4R
TB 26-02 Effects of Large Grain Size in Composite Overwrapped Pressure Vessel https://t.co/aXGp4DhjaE The NASA Engineering and Safety Center (NESC) performed an assessment to characterize the effects of abnormal grain growth (AGG) within a metallic liner of a composite overwr…
Starship targeting 25 launches/year in 2026-2027. Each launch = 100-150 tons to orbit. Do the math: 2,500+ tons/year of payload capacity. That's not space exploration. That's orbital industrialization. Go @elonmusk.

Free #aviation lecture, RAeS Washington DC Branch, 18 Feb, 2026 Sir Stuart Matthews Lecture - given by John Laughter, EVP, Chief of Operations and President, @Delta Technical Operations #avgeek https://t.co/FJ8pi7Q6kU https://t.co/l4RPF1BDai
Free #aviation lecture(s), RAeS Solent Branch, NE Rowe Lecture Competition (<22 Category), 18 Feb #avgeek https://t.co/JJra4NarBl

Today (18 Feb) at RAeS HQ! RAeS #Aerodynamics Workshop 2026: CFD Validation Challenges - Perspectives from Modellers and Measurers #avgeek https://t.co/OxpGPT4vKi https://t.co/jfXuQTxXsr
Curiosity Blog Sols 4804-4811: Kicking Off the Final Phase of Boxwork Exploration https://t.co/fBSFId5aw8 Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Explorat… https://t.co/8GXXSFuPzc

The race to the Moon is on! - @SpaceKate reports on the countdown to Artemis II launch #NASA #Artemis https://t.co/HgVrFswjLR https://t.co/P7yO0wazU1
An influx of F-22s, F-16s E-3s, a U-2 to the Middle East are adding the capabilities the U.S. would need for a sustained attack on Iran. Also, the USS Pinckney was also recently deployed to the region. https://t.co/yoVBE2PVrB
Drones now account for the majority of casualties in the Ukraine War. With Russia improving its strike range by mounting Starlink terminals to drones, Elon Musk has finally stepped in. Full analysis available on Patreon ➡️ https://t.co/LYlet7MIHM #dronewarfare #starlink #ukrainewar #geopolitics
Final Pieces Moving Into Place For Potential Attack On Iran The latest flurry of U.S. assets heading to the Middle East includes many of the missing capabilities needed for a sustained air campaign. Latest: https://t.co/26hU8ux1aD
Super cool to have @boomsupersonic as one of the first companies in the @RobinhoodApp Ventures fund—democratizing investor access to private companies.

There's an informal contest at Boom to see who can put a Boom sticker in the most interesting place, and over the weekend Matt (manufacturing engineer) put one at the top of Mt. Kilimanjaro. (We're not jerks though, Matt took the...
🧵 The U.S. will deploy its "cutting-edge missile and unmanned systems" to the Philippines, a step in strengthening force posture inside the 1st island chain. Beijing isn't happy — that's the point. A welcome sign given the NDS's softer tone on...
Re-up! On the record with @VerticalAero at the 2026 Singapore Airshow to find out more about their Valo #eVTOL #avgeek https://t.co/xntDfKHnaO

.@SESSpaceDefense: LEO, MEO, small GEO, large GEO: Lots of options but our current 90+ GEO fleet will be shrinking. @defis_eu @SatNewsEvents. https://t.co/A3p5RXCo3t https://t.co/5Z53Cle9iW

“Artemis II is far more than a flight test” says RAeS President Elect, Malcolm Macdonald. “It’s a demonstration of what happens when we choose to come together." International cooperation at the heart of #NASA #Artemis mission https://t.co/5siV6ujeHT https://t.co/hK7AcoVyQt

Move over Qsuites, the new @japanairlines Airbus A350 business class may just be one of the best in the world. What do you think?
Just in: The Air Force saty it intends to complete by year's end a restructuring plan for the new Sentinel intercontinental ballistic missile system from Northrop Grumman Corp., after the projected $141 billion program was plagued by skyrocketing costs...
NASA Advances High-Altitude Traffic Management https://t.co/UpkUHWGQlz 4 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) A NASA simulation of higher airspace traffic management with industry partners Aerostar and Sceye i… https://t.co/6LNw6fXpWq

RAF Chief of the Air Staffs message - "make AIR more AIR - (Agile, Integrated, Ready to fly and fight) #avgeek https://t.co/YlMWPJbocW

A week after 7-figure deal w/ international customer, @BlackSky_Inc announces a new 8-figure contract with an international govt for purchase of a 35-cm-resolution Gen-3 satellite w/ multi-year operation and analytics package. Contract to be delivered 'w/in months, not years.' https://t.co/AFKwVV9fNq

The first human spaceflight mission in over 50 years to venture beyond LEO - why Artemis II matters #NASA https://t.co/hDB2MAHbL2 https://t.co/MRfxDeQFVQ

Thermal imaging satellite builder @satellitevu raises GBP 30M ($40.9M) in funding led by @NATOinnovation @BritishBBank @SpaceFrontier #PrestoTechHorizons, bringing total equity raise to $80M. Co has booked pre orders of $8M for HotSat-2, to be launched this yr w/ HotSat 3....

Satellite electric propulsion manufacturer @exotrail books orders for 31 of its spaceware units to Indian operators - 1 to @PixxelSpace, 16 to @XdlinxSpaceLabs and 14 to @DhruvaSpace. Deliveries by 2027. https://t.co/L7zChJd16V
Re-up! Autonomous and accessible - Wisk's vision for future electric VTOL air taxis #avgeek #Boeing #eVTOL #Wisk https://t.co/tpZctOS8e0

Cool bit of aviation history discovered by RAeS Librarian in our archives - ticket for world's first scheduled helicopter passenger service, between Liverpool/Cardiff/Liverpool - 1950! #avgeek https://t.co/59ZlxZSTDN https://t.co/Bb7fjvMQS7

I now have quite a collection of messages like the one below, so the only solution I see is shifting my focus from today's Russia to the Soviet space history, but I am open to other suggestions and, of course,...

Fun fact: 70% of the parts for the first Boom-made engine are finished and delivered. This is a stage 5 HPC blisk, one of the ~30% still being fabricated. https://t.co/NwmqU7HOAk
F-16s Find Balloons, Not UFOs, After Sunday Scramble: NORAD Alert F-16s out of California scrambled to hunt down mysterious targets over Nevada and California twice on Sunday. Story: https://t.co/oQhqC5oK7H
NASA is planning the next Artemis II Wet Dress Rehearsal (WDR) for Thursday, Feb 19. Call to stations is tmrw (Tuesday) at 6:40 pm ET. Simulated launch time is 8:30 pm ET on Feb 19 w/4-hour window. https://t.co/KCJUL9c800

Radar sat operator @synspective expects operating profit this yr as govt contracts ramp & it populate its constellation; Munich office to access @esa programs, agreement w/ @AirbusSpace on use of our high-res spacecraft. @DLR_SpaceAgency @ModJapan_en. https://t.co/SvX70Hs6IQ https://t.co/RO2YXhzunc