The stratospheric flight demonstration will contribute to the development of JAXA’s aerostatic balloon system.

The demonstrated technology will accelerate AstroX Corporation’s commercialization evaluation.

AstroX Corporation and JAXA began jointly developing a project in 2024 under J-SPARC to create new commercial space activities.

The LN-01 mission will carry 48 satellites aboard Blue Origin’s New Glenn rocket.

Blue Origin developed New Glenn as a reusable heavy-lift launch vehicle.

Blue Origin’s New Glenn is aimed at the commercial heavy-lift launch market.

The LN-01 mission is the first of 24 planned launches for Amazon’s Leo constellation deployment.

LN-01 is the first of 24 planned launches for Amazon’s Leo constellation deployment.

LN-01 will carry 48 Leo satellites on board New Glenn.

Blue Origin is preparing the first operational launch of Amazon’s Leo network on the reusable heavy-lift New Glenn rocket.

Commercial satellite constellations are increasing demand for launch vehicles that can carry large numbers of satellites on a single launch.

New Glenn is Blue Origin’s new reusable heavy-lift rocket.

CAS Space, Space Pioneer, and LandSpace are among the companies enlisted for Qianfan demonstration launches.

China Satellite Network Group manages GuoWang.

Qianfan deployments are expected to continue in early June with Long March 8 series and Long March 6A flights.

China has been deploying the GuoWang and Qianfan low Earth orbit connectivity mega-constellations since August 2024.

Amazon Leo has placed 302 satellites into low Earth orbit on 11 launches since April 2025.

Qianfan has reached 162 satellites through 9 launches since August 2024.

China updated its commercial space regulations to require deorbiting stages after they complete their tasks.

Amazon Leo has used United Launch Alliance, Arianespace, SpaceX, and Blue Origin as launch providers.

Most of the lingering second-stages are Long March 6A upper stages.

GuoWang has reached 168 satellites through 21 launches since December 2024.

Qianfan and GuoWang contract out manufacturing of spacecraft groups to China’s satellite supply chain.

Qianfan and GuoWang currently rely on state-owned launch vehicles from three launch sites under the China Aerospace Science and Technology Corporation.

GuoWang satellites weigh between 695 and 1,000 kilograms while attached to a central pillar during launch.

Amazon established dedicated integration facilities in Florida for its constellation near three of its launch providers.

GuoWang has also used the Long March 5 series to fill some of its orbital shells.

Qianfan satellites and GuoWang satellites operate above 1,000 kilometers in orbit.

Qianfan and GuoWang have also used the Long March 6A for constellation deployment launches.

Qianfan satellites weigh about 267 kilograms and can be flat-packed.

The Long March 12 has been focused on GuoWang launches since August 2025.

Commercial demonstrations for Qianfan are expected to carry 10 to 18 satellites before routine deployments.

The Long March 8 series has been dedicated to launching GuoWang and Qianfan satellites since February 2025.

Over thirty second-stages have remained in low Earth orbit after constellation deployment missions since deployments began.

Isar Aerospace is working toward the second flight of its Spectrum rocket from Norway after an April attempt was scrubbed because of a leak in a composite overwrapped pressure vessel.

Isar Aerospace and TKMS committed to significant investment in building a Canadian launch complex.

A new Spectrum launch attempt targeted for 9 April was scrubbed after Isar Aerospace discovered a leak in a composite overwrapped pressure vessel.

Before it can begin launch operations from Canada, Isar Aerospace must demonstrate that its two-stage Spectrum rocket can successfully reach orbit from its launch facility in Norway.

Isar Aerospace has launched its Spectrum rocket once, in March 2025, and the flight failed less than thirty seconds after liftoff.

A composite overwrapped pressure vessel stores high-pressure gas to pressurize propellant tanks and actuate valves.

On 25 March 2026, Isar Aerospace got within seconds of liftoff before an unauthorized vessel entered the designated danger zone.

Isar Aerospace attempted another Spectrum launch on 25 March 2026, but the attempt was aborted after an unauthorized vessel entered the designated danger zone.

Isar Aerospace signed a letter of intent on 26 May confirming its intention to conduct launches from the Canadian spaceport.

Isar Aerospace scrubbed a 9 April launch attempt after discovering a leak in a composite overwrapped pressure vessel that pressurizes propellant tanks and actuates valves.

Isar Aerospace partnered with German maritime defence company TKMS to establish a sovereign Canadian launch capability.

On 26 May, Isar Aerospace signed a letter of intent confirming its intention to conduct launches from the Canadian spaceport.

Before it can begin launch operations from Canada, Isar Aerospace must demonstrate that its two-stage Spectrum rocket can successfully reach orbit from its existing launch facility in Norway.

Isar Aerospace has launched Spectrum once, in March 2025, and the flight failed less than thirty seconds after liftoff.

Before it can begin launch operations from Canada, Isar Aerospace must demonstrate that its two-stage Spectrum rocket can reach orbit from its launch facility in Norway.

Isar Aerospace scrubbed a Spectrum launch attempt targeted for 9 April after discovering a leak in a composite overwrapped pressure vessel.