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John Gedmark

Verified account Astranis Space Technologies

@Gedmark

CEO @Astranis. Founder, aerospace engineer. Building real things to solve some of the world’s hardest problems
San Francisco, CA astranis.com Joined July 2008
523 Following 11K Followers 963 Posts

Latest posts 5

John Gedmark Verified account @Gedmark
Excited to announce that @NASA has selected Astranis for the first phase of NEXUS, a new program to replace the aging GEO satellites that provide mission-critical comms links for some of NASA's most important space assets.

That includes the International Space Station, Artemis, the Hubble Telescope, and NASA's Earth science fleet.

NEXUS will soon require an entire constellation of highly capable spacecraft, as the existing fleet of large GEO relay satellites reaches end of life and are retired.

If you didn't know NASA maintains its own fleet of massive GEO communications satellites I wouldn't blame you-- it's one of those pieces of high orbit infrastructure that has been quietly supporting everything NASA does for decades, but very much behind the scenes.

These satellites are necessary because important space assets like the International Space Station are in LEO, and don't pass over ground stations nearly as often as their operators would like. So the ISS and these other important NASA assets end up relaying most of their data through a constellation of large, expensive GEO satellites called the Tracking and Data Relay Satellites, or TDRS, keeping them connected 24/7.

NASA awarded Astranis a contract with a maximum potential value of $264.3 million, in a firm-fixed-price contract that gives NASA the option to provide additional funding up to the award limit to advance from initial concept development and risk reduction to an in-orbit flight demonstration.

And that's just the beginning. We estimate NASA deployed the existing TDRS constellation at a cost of $13 billion-$15 billion in today's dollars. By working with a company like Astranis, they can replace that capability at a fraction of the cost, freeing up crucial resources for NASA's highest priority future missions, returning astronauts to the Moon and building the Moon Base.

Special thanks to our partners at NASA for their hard work on this program and for making this happen in record time. We're super excited about this mission and providing a capability that NASA, and our nation, badly needs.

Onward to the next phase. 🇺🇸🇺🇸🇺🇸
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John Gedmark Verified account @Gedmark
There it is. China will attempt a human landing on the lunar surface sometime in 2029.

The space race is on my friends. I have full confidence the United States we can get there first under @NASAAdmin 's leadership.

But there is no time to waste.
CNSPACE Verified account @CNSpaceflight 6d
Leaked slide confirms the four-mission progression toward China’s crewed lunar landing:

🚀2027: Maiden flight of Long March 10A carrying Mengzhou CSS cargo resupply mission, to validate the new human-rated vehicle and Mengzhou’s orbital operations in LEO.

🚀2028: First flight of the heavier CZ-10 with an uncrewed Lanyue lander performing a lunar descent and ascent test, exercising the lander’s propulsion and guidance.

🚀🚀2029: Dual CZ-10 launches of Mengzhou and Lanyue for a full-scale lunar-orbit rehearsal, demonstrating rendezvous, docking, and integrated operations.

🚀🚀Before the end of 2030: Dual CZ-10 crewed lunar landing mission.
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