Blog

By the numbers: the Meridian Colony Ark

Engineers love numbers, so here they are for the Meridian Colony Ark. This Colony ship packs a lot into a 2,400 m airframe.

Five questions with Tanvi Kulkarni

We asked Tanvi Kulkarni, our Data Engineer, five quick questions about life in Open Data.

Meet Yusuf Demir, Mission Controller

In this edition of our team spotlight we sit down with Yusuf Demir, who works as Mission Controller in the Flight Operations team at Halcyon Stellar Works.

Exploring Tether Delay-Tolerant Relay Protocol: what you can do with it

Tether Delay-Tolerant Relay Protocol is one of the most-used entries in the Halcyon open catalogue. It is a open source project operating in the ground segment, published under BSD-3-Clause.

The Meridian Colony Ark leaves the cradle

A new Colony ship has joined the Halcyon catalogue. The Meridian Colony Ark lifted off for its maiden sortie on May 2186, and the flight crew came back grinning.

Spec sheet: Corvid Stealth Scout (Reconnaissance scout)

The Corvid Stealth Scout is a Reconnaissance scout designed and built by Halcyon Stellar Works. Its maiden flight took place on September 2185.

Why Bluewater Orbital Medical Trust chose the Kestrel

When Bluewater Orbital Medical Trust wanted more capacity for its Mars business, it compared ships from every major yard. In the end it ordered 4 Kestrel hulls from Halcyon Stellar Works.

Kronos Ice Consortium takes delivery of 11 Tempest Ice Runner

Halcyon Stellar Works has delivered 11 Tempest Ice Runner hulls to Kronos Ice Consortium. The company was founded in 2156 and is headquartered at Titan.

Handover day: Belt Watch Patrol Cooperative receives its Aurora Mk II fleet

This week we delivered 6 Aurora Mk II hulls to Belt Watch Patrol Cooperative. The firm was founded in 2158 and runs its operations out of Vesta.

Following a fusion pellet from Saturn to the drive core

Most Halcyon ships run on helium-3 fusion pellets. Our head of propulsion traces one pellet from a gas-giant atmosphere to a drive chamber, and explains why price stability matters more than price.

A day in the life of Jonas Lindqvist, Flight Software Lead

What does a Flight Software Lead actually do all day? We asked Jonas Lindqvist from our AI & Autonomy group.

Coming soon to Luna: Shackleton Lunar Ops Meetup

Mark your calendar for 26 October 2026, when Shackleton Lunar Ops Meetup arrives at Shackleton Base, Crater Rim Commons. This meetup is hosted by Halcyon Stellar Works.

What does a Nimbus Gas Skimmer really cost?

The sticker price for a Nimbus Gas Skimmer is ₡235 million, but the cost of owning a Gas-giant skimmer over its lifetime depends on much more. This breakdown covers the main line items.

Why we built the Sparrow Trainer

Customers kept asking for a Pilot training craft that was cheaper to run, simpler to crew and easier to maintain far from home. The Sparrow Trainer, which first flew on June 2186, is our answer.

Open catalogue update: Orrery Trajectory Planner

Today's catalogue spotlight is Orrery Trajectory Planner, a open source project. Its operational setting is the ground segment.

Handover day: Vanguard Cartographic Society receives its Valkyrie Survey Corvette fleet

This week we delivered 5 Valkyrie Survey Corvette hulls to Vanguard Cartographic Society. The firm was founded in 2096 and runs its operations out of North America.

Coming soon to Oceania: Sparrow Trainer Flight School Launch

Mark your calendar for 19 November 2026, when Sparrow Trainer Flight School Launch arrives at Halcyon Pacific Flight Academy, Coral Bay Field. This launch is hosted by Halcyon Stellar Works.

What to expect at Open Data Commons Assembly

In a few weeks, Kilimanjaro Knowledge Centre in Africa will host Open Data Commons Assembly. It is a conference where Halcyon engineers take the stage, and it starts on 6 December 2026.

Nimbus Gas Giant Atmospheric Profiles goes public under CC-BY-4.0

Open data is a core part of how Halcyon works. Today Nimbus Gas Giant Atmospheric Profiles, a dataset, joins our public catalogue under the CC-BY-4.0 terms.

Fleet expansion: 5 × Basilisk Salvage Tug for Phobos Dockworks Guild

Phobos Dockworks Guild has added 5 examples of the Basilisk Salvage Tug to its fleet. The handover ceremony took place at the Kepler Yards, with crews from Phobos on hand to accept the keys.

Five questions with Grace Mwangi

We asked Grace Mwangi, our Chief Safety Officer, five quick questions about life in Safety & Mission Assurance.

Nimbus Gas Skimmer technical specifications explained

This post goes through the published specifications of the Nimbus Gas Skimmer, a Gas-giant skimmer in service since its first flight on March 2185. If you are comparing ships for your fleet, start here.

Why Kronos Ice Consortium chose the Polaris Relay Tender

When Kronos Ice Consortium wanted more capacity for its Ceres business, it compared ships from every major yard. In the end it ordered 2 Polaris Relay Tender hulls from Halcyon Stellar Works.

Exploring Eidolon Interstellar Medium Survey: what you can do with it

Eidolon Interstellar Medium Survey is one of the most-used entries in the Halcyon open catalogue. It is a dataset operating in the ground segment, published under CC-BY-4.0.