NASA Greenlights SLS Fueling for Artemis 2 Launch
NASA says it is go to begin tanking the SLS for today's Artemis 2 launch attempt. https://t.co/wfaqCkBpTO

WRC27 Revisits GEO‑LEO Power Limits After 30 Years
At @ITU #WRC27, prepare for Round 2 of GEO v LEO fight over power limits (EPFDs) on LEOs 30 yrs ago to protect GEOs. WRC23 agreed to studies to assess of tech advances allow relaxing them. @Viasat @telesat @SES_Satellites...
AI‑controlled Satellite Mirrors Will Deliver On‑demand Sunlight
You will soon be able to order sunlight the way you order a ride. That is not a metaphor. Reflect Orbital is building small satellites with deployable mirrors that can redirect sunlight to a specific area on Earth, on demand. What stands...
Advising Starway’s ToasterSat: Boosting Orbital Catering Market
Important news for the orbital catering and satellite direct-to-plate markets Delighted to be an advisor to Starway for its ToasterSat project https://t.co/CKD4fN6NAx

Artemis Costs Under 0.5% of US Budget
Alright, the Artemis II launch is less than a day away. So I want to address some recurring criticisms I've seen: it's too expensive, we need to solve problems down here, it's too dangerous, it does nothing for the greater...
Only Five of the 24 Lunar Pioneers Remain Alive
Between 1968 and 1972, twenty-four humans entered lunar space, where the Moon's gravity dominates that of the Earth (within about 66000 km from the selenocenter). Only five of them are still alive.
Few Transporter 16 Payloads Remain Unidentified, SM‑1.2 Owner Sought
Of over 100 payloads deployed on the Transporter 16 launch, only a few have had no info released about them. Does anyone know who owns the "SM-1.2" satellite?

Starship Won’t Offer Cheap Access to Third Parties
Sigh...whether or not Starship works, third parties won't have access to it at "cost" https://t.co/bcRTor02Id
Excited for Artemis Launch, Uneasy About April Fool's Timing
I am so unbelievably excited for this Artemis launch but I really REALLY wish they weren’t doing it on April fools day… the conspiracies have already started
Wishing NASA Success on Artemis Launch, Bon Voyage Christina
Wishing @NASAAdmin and the entire @NASA team the best for tomorrow's Artemis launch attempt - and a special 'bon voyage' to @centerforastro alum @Astro_Christina !
US Military Outlines Emerging Moon Strategy
The US military is developing a strategy for the Moon. Here's where things stand. https://t.co/7DZaZ8Dmnn
NASA Holidays Boost Launch Odds This Time
I think it will actually launch this time for the simple reason that NASA events and holidays (however small) just like to go together.
NASA's “Fastest” Reentry Matches Apollo 10 Speeds
NASA claims the Art. 2 reentry will be the fastest crew entry ever at "about 25000 mph" (i.e. somewhere in the range 10.95 to 11.40 km/s). However the Horizons trajectory for Art2 appears to give 11.06 km/s (inertial) while Apollo...

Artemis II Crew Set to Launch Around Moon Tomorrow
The countdown is on! In under a day hopefully the Artemis II crew of 4 will be on their way around the moon. 👨🚀👨🚀👩🚀👨🚀 https://t.co/kwANSZYAmO
Delta's 2028 Wi‑Fi Upgrade Leaves United Ahead Now
Delta Air Lines is bringing faster, satellite-powered Wi-Fi to its planes via Amazon’s Leo network — but with the rollout not starting until 2028, United Airlines remains the better bet for high-speed connectivity right now. https://t.co/zAi3emQRin
Artemis II Moon Mission Remains On Track for April 1
Everything Still on Track for Artemis II Launch to the Moon on April 1 https://t.co/78OHpYtZiS
NASA Readies Moon Return After 50 Years, Billions Invested
Great feature by @lorengrush: Billions of Dollars and More Than 50 Years Later, NASA Prepares to Return to the Moon https://t.co/mnCAxEiLNO

US, Europe Lay Foundations for Future LEO Satnav Networks
US, Europe put down markers for future LEO satnav constellations: @XonaSpace Series C brings total financing to $320M; @esa launch of 2 sats registers L-, S-band spectrum w/ @ITU. @infoGMV @aerospacelab_ @OHB_SE @Thales_Alenia_S @GermanOrbital @RocketLab.https://t.co/pKb7ilALbh https://t.co/2lLg6ALUdc
Outsiders Drive Radical Innovation in Aerospace and Auto
Indeed, it was *because* I was not from the aerospace industry that SpaceX made such radical breakthroughs. Same for Tesla. Those in the industry would have if they could have.
Finally Thrilled: Orion's Third Flight Exceeds Expectations
I had mixed feelings about the first two flights of Orion. But not this one. https://t.co/9YROBrhJ7M
Grain Management May Open 800 MHz for Satellite D2D
Grain Management could make its 800 MHz available for satellite direct-to-device (D2D) operations. More: https://t.co/Nz0c3qdLvB
Artemis 2 Likely Launches Wednesday, 80% Chance
Artemis 2 weather forecast is 80% go for Wednesday. If launch slips: 70% go Thursday, 75% Friday, 70% Saturday.
NASA Embraces Commercial Moon Future After 54 Years
NASA stopped being about moonshots 54 years ago. In the most positive step since then, they finally acknowledged the future. Commercialization of the moon. Now that's a moonshot
Space Megaconstellations Threaten Near-Earth Environment, Urge Resilience
The new Big Think print issue just dropped: on the Roots of Resilience. Here's how we can avoid a space megaconstellation mega-disaster. The current situation, where companies do nothing, is a recipe for destroying our one & only near-Earth environment. https://t.co/FycTO9j4QD

OneWeb's Rare Failure: Satellite SL0179 Begins Deorbit
There have been very few failures in the OneWeb constellation; on Mar 16 OneWeb SL0179, launched in 2021, began rapid orbit lowering, presumably being retired as a result of some malfunction. https://t.co/catxyEcmju

Space Data Centers Miss Key Advantage: 5× Solar Power
The race to build orbital data centers is missing its biggest variable: power “Solar panel in space produces roughly 5Xs the amount of electricity that the same panel would produce on Earth. There is no atmosphere, no weather and no day-night cycle for most orbits. No interconnection queue and no permitting.” https://t.co/PfmW1te2ac

Artemis II Orion Deemed Unsafe for Flight
Artemis II Orion spacecraft (built by Lockheed Martin, Boeing and Airbus) is not safe to fly via @idlewords https://t.co/PzojTp2Xt9 https://t.co/sNN96eyWwc
Artemis II Crew Set to Launch Around Moon Tomorrow
One more day until crew will fly around the Moon for Artemis II! Cameras are set and hands off at the pad 🤞 https://t.co/WwfKVz6YEr
GalaxySpace Launches IPO, Leveraging Veteran Aerospace Talent
Chinese Satellite Startup GalaxySpace Kicks Off IPO The company’s core engineering team includes veterans from major state-backed aerospace institutions, including units under China Aerospace Science and Technology Corp. and China Aerospace Science and Industry Corp. Its business spans satellite mobile...
United's Wi‑Fi Launch Beats Delta's Amazon Choice
Delta Chose Amazon Over Starlink For Wi-Fi — But United’s Rollout Will Be Done Before This Starts - View from the Wing https://t.co/Axxau08JDi

Elon Musk Denies Robinhood, SoFi Exclusion From SpaceX IPO
🚨 @elonmusk says reports of Robinhood and SoFi being excluded from SpaceX IPO are FALSE Don't believe everything you read on the Internet. https://t.co/tquUQsj9IO

Swiss
Small-GEO satellite builder @Swissto12 forecasts $200M in rev this year, up from $140M im 2025, & positive EBITDA; business case broadening to optical relay, D2D. @esa @Viasat @SES_Satellites.https://t.co/XU73ts10er https://t.co/KkZXw8LjZ3
NASA’s Project Evaluation: Public Funding vs SpaceX Competition
BONUS ODD LOTS AHEAD OF ARTEMIS II LAUNCH 🚀🌕 @TheStalwart & I speak with Alex MacDonald, who was the first chief economist at NASA. We talk about how the agency evaluates its projects, & public vs private funding of space exploration...
Legged Robot Enables Rapid Moon, Mars Resource Surveys
A semi-autonomous legged robot equipped with compact scientific instruments can rapidly survey planetary surfaces, accelerating resource prospecting and the search for biosignatures on the Moon and Mars. spaceexploration

Starlink Outpaces Cable Firms in Airborne Uplink Speed
@Starlink is serving more uplink to a plane at 500 mph than Kabletown can deliver to your house with a wire. Yikes. $CMCSA $CHTR https://t.co/09s4MJ9QlX
Lijian‑2 Yields Single Cataloged Object in Low Orbit
1 object cataloged so far from the Lijian-2 launch, in a 217 x 604 km x 85.0 deg orbit
NASA Confirms April 1 Launch Still On Track
NASA post-MMT news conference underway. Amit says everything is still go for launch on April 1. https://t.co/oitmRWMkDe
NASA Confirms Artemis II Launch Ready for Wednesday
Monday briefing: NASA remains “go” for launch of Artemis II at 6:24 pm ET on Wednesday. 🚀
Virgin Galactic Nears First SpaceShip Completion, Flights $750K
Virgin Galactic says assembly of first SpaceShip nearly complete, ground testing begins in April, limited number of Spaceflight Expeditions available at $750,000 each. https://t.co/cGpV1aLh5Z

Diagram Mislabels PrSM: Shows Liquid Engine, Not Solid
This exploded diagram appears to shows a liquid propellant rocket engine (two tanks, plus an engine); PrSM is a solid rocket motor. What gives? https://t.co/GvxUeeiaqs

Krikalev Vows Orel Descent Module Replica for Drop Tests
Since the beginning of the year, Roskosmos officials had made a couple of "proof of life" statements regarding the decade-late PTK Orel spacecraft. The latest being Sergei Krikalev's promise to complete a high-fidelity copy of the Descent Module, VA, for...
Satellite Broadband Threatens Fixed Operators with Cheaper Economics
"'I think every fixed broadband operator should be very worried,' says CableLabs' Hans Geerdes. He calls satellite broadband 'basically the second coming of fixed wireless, but at much better economics.'" via @thebauminator https://t.co/nxXotQ0TuS

BBC Launches Daily Artemis II Podcast with Experts
Really excited to kick off the BBC’s space podcast ‘13 Minutes Presents: Artemis ll’ with myself, Maggie Aderin and @KristinFisher . This is a daily podcast bringing you all the news on the Artemis ll mission as it happens. First...
SpaceX Transporter 16 Launch Carries Over 100 Payloads
LAUNCH of SpaceX Transporter 16 rideshare mission at 1102 UTC Mar 30. Over 100 payloads aboard. GCAT will be updated later today I hope.

SpaceX Launches 119 Satellites, Featuring Starship‑ready Payloads
🚀 SpaceX just launched 119 satellites in one go. Here are some labeled payloads on Transporter-16. K2 Space's 2-ton Gravitas satellite on top is a flat pack which could also be deployed by Starship. Starcloud’s new 3-ton ODC sat is also...
Orbital Lasers Aim for 100+ Gbps, Cloud Cover Challenges
Lasers promise 100+ Gbps from orbit, but can ground station cost and cloud cover be engineered into non-issues? https://spectrum.ieee.org/satellite-communication-laser-radio-transcelestial?share_id=9303370

Three Giant Rockets Launch Soon, Expanding Moon Access
If schedule holds, these 3 giant rockets will launch in the next 3 weeks. From left to right: New Glenn - satellite launch now, planned for the Moon Starship - test flight 12 now, planned for the Moon Artemis - to the Moon...

Space42 AI Secures 2,800‑Sat Constellation Deal
.@space42ai: Builder of 2,800-sat #Equatys D2D constellation selected, contract imminent; service by 2029; will add average 5% to users' mobile phone bill; 'massive scaleup' in @iceye_global radar capacity planned. @Viasat.https://t.co/JMPykYBVMH https://t.co/pe20Y6y8LT
ESA Director Discusses Key Shifts in Artemis Program
Interesting interview with ESA DG Josef Aschbacher by Space News' Emma Gatti about the Artemis changes. https://t.co/NxnFdhnSos
NASA's Zero-Gravity Arms Master Delicate to Heavy Grips
NASA’s Zero-Gravity #Robotic Arms Master Delicate, Heavy, and Irregular Grips by @tweetciiiim #Tech #TechForGood #EmergingTech https://t.co/0GYmLH3Zxd