The USS Mercury is an Obena-class emissary providing crucial engineering and diplomatic support to Sirius Squadron. A veteran of a thousand humanitarian responses and diplomatic outreaches, her experience reaches back twenty years and spans the breadth of the Alpha and Beta Quadrants. From the tensions of the Federation interior to troubled frontiers to neighbours in need of friendship or assistance, the Mercury and her crew have never feared to get their hands dirty to help anyone in need. Today, she forms part of the Operations Division of Sirius Squadron, bringing aid to the most burdened reaches of the galaxy and extending the hand of Federation friendship.
Sirius Expeditionary Squadron is a unit centered around the Odyssey-class USS Sirius under the command of Commodore Matt Rourke. Sirius Squadron stands ready to deploy outside or on the fringes of Federation territory at short notice to respond to emerging situations across the galaxy. With multiple versatile and powerful ships at its disposal, the squadron can operate independently and without support for extended periods, and is flexible enough to face a range of missions, including under volatile circumstances where objectives and conditions can quickly change. While this profile often leads Sirius Squadron to respond to geopolitical crises, the unit’s versatility make it equally suited emergent scientific investigations.
The main unit, organised around the Sirius herself, is an element of several powerful ships each able to take the lead or act independently depending on the mission’s needs. Deployed together, they are a supremely well-rounded and capable unit. Two additional divisions provide specialist support. The first, headed by the USS Redemption, acts as an operations element to provide engineering, humanitarian, or diplomatic services. The second, headed by the USS Liberty, fulfils dedicated exploratory or scientific missions. The divisions may deploy independently or in support of one another, depending on operational needs.
To follow the main stories of Sirius Squadron, visit the USS Endeavour Command page.
Badge by user; ‘Star dog’ image element generated with Midjourney
Commanding Officer
Executive Officer
Chief Operations Officer
Chief Engineer
Chief of Security/Tactical
Chief Science Officer
Chief Flight Control Officer
Chief Medical Officer
Captain's Yeoman
24 April 2025
Gateway Station, USS Blackbird, USS Endeavour, USS Liberty, USS Memphis, USS Mercury, USS Ranger, USS Redemption, USS Scylla, USS Sirius, USS Swiftsure and USS Tempest
‘…repel even the lightest incursions from Sirius Squadron. The Federation is probing us, and instead of answering with discipline and deterrence, you offer delay and excuses. These are the tactics of scavengers, not soldiers. If the enemy moves unchallenged through our flanks, if they steal our [...]
22 April 2025
Gateway Station, USS Blackbird, USS Endeavour, USS Liberty, USS Memphis, USS Mercury, USS Ranger, USS Redemption, USS Scylla, USS Sirius, USS Swiftsure and USS Tempest
Unit Commander’s log, Stardate 240204.14. Proxima’s secured. The ships which aren’t protecting her or fixing what the Vaadwaur broke – or who the Vaadwaur broke – are looking to take the next bite out of them. Which means we move into No Man’s Land, the dust belts and old relay [...]
19 April 2025
Gateway Station, USS Blackbird, USS Endeavour, USS Liberty, USS Memphis, USS Mercury, USS Ranger, USS Redemption, USS Scylla, USS Sirius, USS Swiftsure and USS Tempest
It felt like he’d tried to drown himself in his shower a few dozen times since joining the Rooks. But this time, Rosewood thought, he might actually do it. Proxima IX still burned. The Vaadwaur consolidated their position at Toliman. And Drehm was still out there somewhere. There was very little [...]
18 April 2025
Gateway Station, USS Blackbird, USS Endeavour, USS Liberty, USS Memphis, USS Mercury, USS Ranger, USS Redemption, USS Scylla, USS Sirius, USS Swiftsure and USS Tempest
‘I’ve read it, it’s incredible work.’ Elsa Lindgren’s face was exhausted on the small screen of Aryn’s PADD, but even on such a scale he could see the light of excitement in her eyes. ‘This could completely change the course of this campaign, Mac.’ ‘I’m sure someone else would [...]