Scheduled for delivery in 2025, the custom yacht is currently under construction at the builder’s Rendsburg facility in northern Germany.
Marc Newson’s Signature Exterior Styling
Both the exterior and interior of Project Cosmos have been designed by Marc Newson Ltd, the studio behind the 139.7-meter Solaris. The profile of the yacht reflects Newson’s signature sculptural minimalism, with a bold forward silhouette shaped by an integrated glass observation lounge. Her form is sleek, with extensive black glazing and a soft metallic palette reinforcing the yacht’s futuristic tone.
Key deck features include a broad foredeck prepared for a helipad and a large aft deck swimming pool. A sculpted cut-out on the aft deck suggests space for a substantial tender or additional watercraft. The top deck also features a dome-shaped observation lounge offering panoramic views.
With sea trials still ahead, Project Cosmos is expected to remain largely out of public view until her formal delivery in 2025. The hull was completed and primed for outfitting in August 2023, with rumors pointing to a heritage green paint finish as a nod to the yard’s legacy.
Behind the Build: Specs and Structure of Project Cosmos
Built on a full-displacement steel hull with an aluminum superstructure, Project Cosmos spans four decks and carries a beam of 18 meters. The motor yacht was first launched in technical form in March 2023 and later transferred to Kiel for outfitting before returning to Rendsburg for final works. Her deck material will be teak, and onboard equipment includes a bow thruster, stabilizers (underway and at anchor), and twin screw propellers.
She will carry amenities such as a spa, cinema, swimming pool, helipad, and multiple observation areas, along with full guest connectivity via satellite TV and Wi-Fi.
Fuel Cell Innovation on Board Lürssen’s Project Cosmos
Most notably, Project Cosmos is the first Lürssen yacht to be equipped with a methanol-powered fuel cell propulsion system. The system is built around fuel cell stacks composed of bipolar plates and membrane electrode assemblies, providing silent, emission-free power for up to 15 days at anchor or around 1,000 nautical miles of low-speed cruising.
This technology marks a significant shift for the shipyard, offering an efficient and low-maintenance alternative to conventional diesel propulsion. The methanol supply is integrated with the yacht’s ventilation and electrical systems, and meets rigorous maritime safety standards. Peter Lürssen first announced the yard’s commitment to fuel cell development in 2021, describing the system as more efficient and easier to maintain than traditional diesel engines.
Project Cosmos to Enter YB100 and Lürssen Marks 150 Years
The unveiling of the Cosmos renderings coincides with Lürssen’s 150th anniversary, signaling not just a milestone in the shipyard’s history but also a leap forward in yacht propulsion.
Further, with a length of 114.2 meters and a gross tonnage of 6,300 GT, Project Cosmos is poised to rank 44th in the global Top 100 by length and 32nd in the YachtBuyer YB100 by volume, according to YachtBuyer Intelligence - the world’s largest yacht database. The yacht is also reportedly being built for a Japanese owner and will fly the Cayman Islands flag.
Other Lürssen Builds Set to Join the YB100
Project Cosmos is one of several major custom builds reinforcing Lürssen’s dominance in the upper tiers of the global superyacht fleet. Set for delivery in 2025, the 134.2-meter Deep Blue will rank 23rd by length, but rises to 19th in the YB100 based on her 9,000GT interior volume. Designed for extended cruising with twin helipads and a vast upper-deck infinity pool, she exemplifies Lürssen’s scale and ambition.
Also due next year is the 110-meter Shackleton, formerly known as Icecap. Built for expedition cruising, her 6,500GT volume places her at Rank 32 in the YB100 - 17 places higher than her length rank - highlighting her substantial enclosed spaces and exploration-focused layout, including an inverted X-bow, certified helipad, and large tender deck.
Looking further ahead, Project Omega, a 122.5-meter RWD-designed yacht scheduled for 2029, will enter the YB100 with a projected volume of 5,200GT. While her ranking will depend on future additions to the fleet, she represents a more streamlined aesthetic, with flowing overhangs and a dedicated dive center integrated into her beach club design.
As Lürssen celebrates 150 years of shipbuilding, Project Cosmos leads a new era of zero-emission superyachts, standing alongside a growing fleet of record-breaking builds that continue to reshape the upper ranks of the global YB100 index.
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