Daan Coster

We have shipped our 20kW satellite - Gravitas - to the launch site. Given the supply chain to operate at this power regime doesn’t exist, we had to build 85% of the satellite in-house. This includes building our own large solar arrays, high power propulsion system, large batteries, large reaction wheels and much more. This launch will represent the first time all of these systems are test on orbit together. Internally at @K2SpaceCo, we’ve thought about a few levels of success for this mission - we expect mission success to fall somewhere along this spectrum: - Tier 1 (Baseline mission success): Deploy solar arrays, establish comms, operate the satellite —> we’ve now got an operational 20kW satellite on orbit - Tier 2: Power on the payloads, activate the 20kW propulsion system —> we’re completing payload missions and have fired the highest power hall thruster ever flown on orbit - Tier 3: Orbit raise the satellite, test performance in high radiation environments (like 2,000km) —> we’ve collected massive amounts of data on the performance of the platform in very very difficult environments More than anything, Gravitas represents the start of an iterative journey, where we will take the data we receive from this first satellite and incorporate it into the next wave of satellites launching next year. We’re excited to start this journey, we’ll report back as we get more data. Thanks to Tim for covering our story on TechCrunch techcrunch.com/2026/03/19/k2-…

For 25+ years, we’ve sustained human presence on the ISS. It’s our testbed for life support, spacesuits, and long-duration flight. Now we’re taking those lessons to the Moon. Starting in 2027, robotic landers and rovers will build toward a steady cadence as we construct a lunar base and extend American leadership to Mars and beyond.

Orbital Data Center cinema 😂

Great things happening in space. Key theme going forward is convergence. Space is where biotechnology, advanced materials sciences, robotics and data sciences are all pushing their boundaries. And mutually reinforcing each other. We go to space to protect what's important, and push what is possible. Never stop dreaming. Never stop building. $VOYG

Blue Origin filing for 51k ODC satellites. 3 months ago we suggested that SSO could become a land grab in our analysis. there is a good reason for it. The new space race is all about inference pcmag.com/news/blue-orig…

The secret plan is out! Two great articles today about our plan to capture a small asteroid and bring it into Earth orbit. The concept is part of our New Moon mission, which explores relocating a small near-Earth asteroid into a controlled orbit as the first step toward building industrial infrastructure in space. Our team has been developing the key technologies for this approach for years, including capture mechanisms to constrain and move small asteroids and orbital debris. Accessing materials already in space could eventually enable a new generation of industries beyond Earth. If you're interested in the future of space resources, these articles are worth a read. hashtag#space hashtag#asteroidmining hashtag#spacetechnology hashtag#spacex hashtag#venture

A private space company has a radical new plan to bag an asteroid arstechnica.com/space/2026/03/…

Falcon 9 now in parking orbit. There are now 10020 Starlinks in orbit (although 25 of them are still attached to the Falcon 9 for another 50 min or so, until the stage's circularization burn and satellite deployment).

@elonmusk It really was just another Tuesday 🚀

Implied earnings growth expectations have risen for every S&P sector since the start of 2026. Despite rising macro uncertainty, there's no evidence of any incremental risk discount in US large caps YTD. That bullishness is grounded in history, but its resilience is remarkable.

Many Agentic AI use cases automate specific workflows over replacing entire occupations, suggesting any labor displacement will likely be concentrated in certain tasks, with the broader macro impact showing up more as higher productivity growth than a sharp rise in unemployment.

$RKLB Files for a new 1 BILLION ATM Equity program Program after market close. Seems like something very big is brewing. investors.rocketlabcorp.com/node/12191/html

When I was on the ISS for my nearly year long mission, there was a telomere experiment comparing my telomeres to my earth baseline and my twin brother as a control. Hypothesis was they would get damaged and worse due to the environment. Turns out they got better. Initially NASA thought maybe it was due to exercise and diet. After I returned we learned JAXA had a telomere experiment on some small worms the same time I was there. Their telomeres got better too. Never saw the worms doing any exercise. After further study determined it was the radiation.

Super exciting to expand our work with @nvidia! We've put their GPUs in space, now we're building GPU-native Al engine on earth data, unlocking the full potential of our 100 petabyte-scale archive, and delivering orders of magnitude speed improvements. Insights in seconds, not hours. This benefits our customers where, from disaster response to security, time saves lives. Together, we're moving towards planetary intelligence. investors.planet.com/news/news-deta…

The past is a great predictor of the future. When we look back, some of the greatest technical advancements of our time are based on a simple change in the availability of key raw materials. Take for example, the Washington Monument; it's capped with aluminum. Not because it looked cool or was in some way a utilitarian choice, but because in 1884, aluminum was more precious than gold.

A lot can happen in 30 years.

Super excited to see the FCC have such a strong focus on spectrum access for space missions. Such a critical challenge for the next generation of space innovation

In recent years I have built up expertise in the field of the space economy. Today I wrote this article in the Wall Street Journal in honor of the American rocket pioneer Robert Goddard: wsj.com/opinion/a-cent… @robert_zubrin @GregWAutry @NASA More in my book NEW SPACE CAPITALISM (May)

The next chapter of Artemis is about acceleration. • Building the Moon base • Landers at the lunar south pole on a monthly cadence starting in 2027 • Nuclear power & propulsion • More science and discovery First we clear the barriers inside NASA. Then we move.

Friday the 13th being bad luck? Not in Chinese launch. Within the first 7 hours of the day (local time), China conducted two successful launches, sending 11 #satellites into orbit 1️⃣ 🛰️ At 3:48am local time, 9 Guowang satellites were launched on a LM-8A from Wenchang. The satellites were built by CAS Shanghai Engineering Center for Microsatellites, and are the 20th batch launched for China SatNet's constellation, bringing the total number of on-orbit Guowang satellites to 163 batch satellites and ~24 test satellites 2️⃣ 🚀 About 3 hours later, the Shiyan-30 03 and 04 satellites were launched on a LM-2D, with both satellites and the rocket built by #SAST (link in the comments). The launch seems largely the same as the LM-2D launch of Shiyan-30 01 and 02 in September 2025, and satellites will likely be used for testing remote sensing technologies After a quiet Lunar New Year in China, launch cadence appears to be picking up. And for what it's worth, there's still another ~15 hours of Friday the 13th in China 🤔 #ChinaSpaceGuy mp.weixin.qq.com/s/SDVEt2srfVLg…