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.
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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
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 [...]
17 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
‘…the Vaadwaur didn’t stick around for more than one volley. That was enough to at least rupture eighty-three percent of habitat domes. Which means eighty-three percent of the inhabitants of Proxima IXa are confirmed dead; around a hundred and four thousand people.’ StratOps aboard the [...]
16 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
The transporter beam faded to plunge them into the dying depths of the USS Liberty. Once, these halls had shone with Starfleet optimism and efficiency. Now, they were stained with the blood-red hues of emergency lighting and acrid smoke, shadows jittering off bulkheads as display screens sputtered [...]
15 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
Rosewood felt the half-inch drop to the deck of the transporter pad as the beam faded, its light and the sight of the burning skies of Innes leaving him blinded in the gloom of the Blackbird’s transporter room. Which meant he didn’t see it coming when Cassidy grabbed him and slammed him into [...]