374ft superyacht Project Cosmos undergoes sea trials with it being one of the first in the world to have fuel cell technology
Published on Nov 27, 2025 at 9:51 PM (UTC+4)
by Grace Donohoe
Last updated on Nov 27, 2025 at 2:53 PM (UTC+4)
Edited by
Mason Jones
Project Cosmos is set to be one of the most impressive yachts around, and it’s not hard to see why.
The superyacht is manufactured by Lürssen and hosts some awesome features.
From a futuristic design to leading the way with fuel cell technology, the vessel is already turning heads.
Now, though, it has been spotted undergoing sea trials, which means that the release is edging closer by the day.
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Project Cosmos has been spotted at sea
World-famous ship manufacturer Lürssen previously unveiled one of its most impressive superyachts yet in August, and now it has been spotted undergoing sea trials, according to Boat International.
The publication states the the trials are taking place around the port city of Kiel in Germany.
Reportedly commissioned by a Japanese billionaire, Project Cosmos boasts a design that will leave you in awe, particularly the use of glass within the floating paradise.

Measuring at 114 meters in length, Project Cosmos’ most distinctive feature is the glass-domed owner’s study, which even has a sky terrace.
The space offers a 360 view of the surrounding ocean, with the company conjuring up its own way to ensure that the thick glass used was crystal clear.
On board, there’s also a helipad, swimming pool, and jacuzzi alongside a glass observation lounge and open balcony – talk about luxury.

“While it is true that as a custom shipyard, no two yachts that leave our halls are ever the same, there are some that leave an indelible mark on our history – COSMOS is undoubtedly one of those yachts,” Peter Lürssen said.
But that’s not the only impressive factor.
The superyacht’s ground-breaking technology
Aside from the luxurious design, Project Cosmos also uses a methanol fuel cell system.
Detailed as a research installation by Lürssen, the fuel cell system works by using methanol in a bid to produce hydrogen, and the ‘technologically challenging and complex procedure’ then makes electricity.
The tech stems from the owner’s mission of creating something innovative that allows them to explore the world with ease, with a range of 1,000 nautical miles at seven knots.
The design of the superyacht was brought to life by Marc Newson.
“Everything from the smallest detail to the silhouette – outside, inside, and everything in between – is our design.
“We have, therefore, been able to exploit and explore every creative possibility uninhibited,” explained the designer.
Keep your eyes peeled as it’s set to be delivered in 2026, so in a matter of months, its billionaire owner could be exploring all seven continents.
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