Blog

Preview: Starliner Mars Express Route Launch

Starliner Mars Express Route Launch is coming up on 21 December 2026 at Olympus Mons Spaceport, Terminal 1, Mars. This launch is hosted by Halcyon Stellar Works.

Release notes: Heliograph Solar Weather Sentry

The latest release of Heliograph Solar Weather Sentry is now live. This satellite (Sun–Earth L1 halo orbit) remains freely available under CC-BY-4.0.

Pellet Fusion Digital Twin goes public under MIT

Open data is a core part of how Halcyon works. Today Pellet Fusion Digital Twin, a open source project, joins our public catalogue under the MIT terms.

Designing the spin-gravity decks of the Halcyon Starliner

How our interior team turned two rotating rings into a place where 1,200 passengers can sleep, eat and walk normally for a three-week crossing to Mars.

Five questions with Thiago Santos

We asked Thiago Santos, our Interior Design Lead, five quick questions about life in Design.

Release notes: Geyserline Enceladus Plume Sampler

The latest release of Geyserline Enceladus Plume Sampler is now live. This satellite (Saturn orbit, resonant with Enceladus) remains freely available under CC-BY-4.0.

Release notes: Phobos Anchor Relay

The latest release of Phobos Anchor Relay is now live. This satellite (Phobos co-orbital, 6,000 km above Mars) remains freely available under CC-BY-4.0.

Why Europa Ocean Sciences Foundation chose the Odyssey Deep Explorer

When Europa Ocean Sciences Foundation wanted more capacity for its Enceladus business, it compared ships from every major yard. In the end it ordered 1 Odyssey Deep Explorer hulls from Halcyon Stellar Works.

Triton Frontier Webinar: speakers and schedule

We've finalised the Halcyon line-up for Triton Frontier Webinar. The webinar opens on 29 December 2026 at Online, hosted by the Neptune Exploration League, Triton.

Cleaning up our own front yard: Basilisk tugs at L5

How a fleet of Basilisk Salvage Tugs removed 61 derelict objects from around Kepler Yards, and what it cost.

What to expect at Toulouse Propulsion Summit

In a few weeks, Halcyon Toulouse Campus, Garonne Auditorium in Europe will host Toulouse Propulsion Summit. It is a summit hosted by Halcyon Stellar Works, and it starts on 16 November 2026.

Tharsis Freight Union takes delivery of 14 Atlas Heavy Freighter

Halcyon Stellar Works has delivered 14 Atlas Heavy Freighter hulls to Tharsis Freight Union. The company was founded in 2128 and is headquartered at Olympus Ring.

Diving into Jupiter: the structural engineering of the Nimbus Gas Skimmer

Every Nimbus pass through a gas-giant atmosphere subjects its 240-metre hull to heating and loads no other Halcyon ship ever sees. Here is how we keep it in one piece.

Fleet expansion: 3 × Valkyrie Survey Corvette for Ceres Deepcore Mining Collective

Ceres Deepcore Mining Collective has added 3 examples of the Valkyrie Survey Corvette to its fleet. The handover ceremony took place at the Kepler Yards, with crews from Ceres on hand to accept the keys.

Equinox Transit Lines commissions Seraph Medevac hulls for L5 Lagrange Station service

Another delivery has left the yard. Equinox Transit Lines, based at North America, now flies 1 Seraph Medevac hulls built by Halcyon.

Coming soon to Vesta: Vesta Mining & Minerals Expo

Mark your calendar for 1 December 2026, when Vesta Mining & Minerals Expo arrives at Vesta Deepcore Exhibition Cavern. This expo is where Halcyon engineers take the stage.

Total cost of ownership: Odyssey Deep Explorer

Commissioning a Odyssey Deep Explorer starts at ₡1,240 million. That buys a Long-range explorer with a 1,200 tonnes payload and a 1,800 AU reach.

Why Andes Orbital Couriers chose the Kestrel

When Andes Orbital Couriers wanted more capacity for its Mars business, it compared ships from every major yard. In the end it ordered 5 Kestrel hulls from Halcyon Stellar Works.

Now available: Selene Lunar Positioning Grid

Halcyon Stellar Works is opening up access to Selene Lunar Positioning Grid, a satellite operating from Lunar frozen orbits, 3,000 km. It is released under the Open Data Commons ODbL licence.

Why we open-source our flight software

Developer advocate Elias Moreau argues that publishing the code that flies our ships makes them safer, cheaper and easier to buy.

Inside the Tempest Ice Runner: what the spec sheet doesn't tell you

A spec sheet says the Tempest Ice Runner is 410 m long and carries 38,000 tonnes, but that is only part of the picture. What matters is how this Outer-system ice transport behaves on a real mission.

Coming soon to Europe: Interstellar Propulsion Colloquium

Mark your calendar for 5 November 2026, when Interstellar Propulsion Colloquium arrives at Rhône Institute of Advanced Physics. This conference is where Halcyon engineers take the stage.

Release notes: Grapple Vision Toolkit

The latest release of Grapple Vision Toolkit is now live. This open source project (the ground segment) remains freely available under Apache-2.0.

Spotlight: Nkechi Adeyemi on building the future of spaceflight

Nkechi Adeyemi joined Halcyon to work on hard problems, and as VP Engineering there has been no shortage of them.