Inmarsat Gains High-Speed Pacific Coverage With Final Viasat-3 Launch

Inmarsat's high-end broadband service is fast, but its recent tie-up with U.S. satcom giant Viasat promises to make it even faster. Inmarsat's multi-orbit hybrid network is designed to integrate bandwidth from ViaSat's next-generation satellite constellation, ViaSat-3. First launched in May 2023 for service over the Americas, the VS3 satellite series should bring high speed broadband over Europe and Asia as well - and it is now one big step closer to full deployment. On April 29, the third and final ViaSat-3 satellite took flight on a SpaceX rocket, and it successfully reached orbit.
ViaSat-3 has been years in the making. The first satellite had challenges with antenna deployment, and has not been able to attain its full data throughput rate. It serves the Americas, and is currently capable of about one-tenth of its rated one-terabit capacity. ViaSat has filed a claim with its insurers for $420 million in connection with the satellite's underperformance, a historically high request.
The second satellite went up without issue aboard an Atlas V rocket in November 2025, and is slated to serve the EMEA region once it comes fully online. The third and most-anticipated satellite, Viasat-3 F3, launched on a SpaceX Falcon Heavy rocket on Wednesday. Following a dramatic flight up and out of the atmosphere, the six-tonne telecom relay was delivered successfully to a geosynchronous orbit.
Using Viasat-3, combined with a purpose-built terminal that works with the new constellation, Inmarsat expects to add much more capacity to its bonded network. The terminal is capable of 250 mbps download speeds - enough bandwidth to provide full redundant backup for a high speed LEO service. The F3 satellite will put that coverage over the busy shipping lanes of the Pacific.
"As ViaSat-3 capacity becomes available, we’re taking another big step forward for our customers and partners by bringing more bandwidth, better flexibility, and a forward-thinking upgrade path to ensure connected confidence for the future," said Ben Palmer, president of Viasat Commercial, in announcing the addition of Viasat-3 to the lineup last year.
Russia launches new Soyuz-5 rocket from Kazakhstan cosmodrome in first test flight

On Thursday, April 30, at 23:00 local time (Astana), the Baikonur Cosmodrome witnessed the first test launch of the Soyuz-5/Sunkar vehicle. The rocket lifted off from Site 45 as part of flight development tests, according to Kazakhstan’s Ministry of AI and Digital Development.
A new Russian medium-class launch vehicle Soyuz-5, was launched overnight on Friday from the Baikonur Cosmodrome in Kazakhstan as part of its first flight tests, Russia’s state space corporation Roscosmos said.
According to Roscosmos, the Soyuz-5 is equipped with what it described as the world’s most powerful liquid-fuelled rocket engine.
The launch marked the first test flight of the new-generation rocket.
Roscosmos said the first and second stages operated normally and that a payload mock-up was placed on a planned suborbital trajectory before falling into the Pacific Ocean.
The space agency said the new rocket is designed to reduce the cost of launching payloads, double payload capacity to up to 17 tonnes and use environmentally cleaner fuel components.

The Baikonur Cosmodrome is one of the most iconic sites in space exploration history.
In 1961, it became the launch site of the world's first human spaceflight, with Russian cosmonaut Yuri Gagarin lifting off from there in the Vostok 1.
After the collapse of the Soviet Union, Russia continued to operate Baikonur under a lease agreement with Kazakhstan.
In 2004, Kazakhstan and Russia launched the joint Baiterek project, aimed at modernising launch facilities at Baikonur and facilitating a transition to more environmentally friendly rocket systems.
Kazakhstan and Russia continue close cooperation in the space sector. In 2021, the Kazakh parliament extended Russia’s lease of Baikonur until 2050.
The launch of Soyuz-5/Sunkar marks a turning point for Kazakhstan’s space ambitions, positioning the country closer to becoming a new space power.
With the development of the Baiterek launch complex and growing control over modern launch infrastructure at Baikonur, Kazakhstan is moving beyond its historical role as a spaceport operator.







