Tag: Interstellar Technologies

Japanese rocket startup Interstellar gets another $47 million grant from Japan

8:58 am

The Japanese rocket startup Interstellar last week announced it has been awarded a new $47 million grant from Japan’s Small Business Innovation Research (SBIR) program, in addition to the $53 million awarded in earlier grants.

The SBIR is a 3-phased governmental program aimed to promote the implementation of advanced technologies developed by startups in Japan. Interstellar was selected in September 2023 under the space section focused on the “Development and Demonstration of Private Launch Vehicles”, a project spanning for 5 years, from September 2023 to March 2028. After being selected as one of the four participating companies, Interstellar became one of three companies to pass the Phase 1 review in September 2024.

In this latest round, Interstellar is one of only two companies to pass, moving into the 3rd and final phase, which includes flight demonstration. Including the funds of the previous phases the total amount has reached a maximum of 15.4 billion JPY ( 98.97 million USD).

The company has also raised a little under $130 million in private investment capital, and has also signed contracts placing seven satellites on the first launch of its proposed Zero rocket. That launch was originally supposed to occur in 2025, but did not. No new launch date has been set, though this new grant suggests the company is getting close, though I also doubt it will occur in 2026.

At the moment Japan has no launch capability, as the two rockets controlled by its space agency JAXA are both grounded due to launch failures. It has several startups trying to build their own rockets, but none has succeeded as yet. The only one to attempt a launch, Space One, has tried three times to reach orbit with its Kairos rocket, all failures.

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Japanese rocket startup Interstellar raises another $129.7 million in private investment capital

9:11 am

The Japanese rocket startup Interstellar announced late last week that it has successfully raised another $129.7 million in private investment capital, bringing its total available cash to $287.7 million.

Interstellar’s Series F round represents one of the largest fundraising to date by a privately held space startup in Japan2, bringing Interstellar’s cumulative funding to 44.6 billion JPY (287.7 million USD). The round, led by Woven by Toyota, raised 14.8 billion JPY (95.5 million USD) through a third-party allotment of preferred shares in an up-round.

In addition, the company secured 5.3 billion JPY (34.2 million USD) in debt financing from financial institutions, including 1.8 billion JPY (11.6 million USD) in loan facilities with stock acquisition rights provided by the Japan Finance Corporation. Alongside the fundraising, secondary transactions with existing shareholders were also conducted to optimize the company’s capital structure. Nomura Securities provided advisory support in this series, including the introduction of several potential investors, some of which resulted in fundraising.

Interstellar was one of the earliest rocket startups, first attempting a suborbital launch in 2018. After that launch failed it then disappeared for almost five years to suddenly reappear last year with major funding from Toyota and other sources.

It had previously hoped to complete the first launch of its Zero orbital rocket in 2025. At the moment however the company has set no new launch date, though it has announced that it has seven customer payloads for that launch.

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Japanese rocket startup Interstellar signs five customers for first orbital launch

8:46 am

The Japanese rocket startup Interstellar, which is being backed largely by Toyota, has announced that it has gotten five customer payloads for the first orbital launch of its Zero rocket.

This milestone mission will include cubesats from four organizations, Ocullospace, Wolfpack, Osaka Metropolitan University and Tokyo City University, and a fifth participant, DALRO Aerospace, that will supply the separation system for the universities’ cubesats. These 5 customers have already signed each a Launch Service Agreement with Interstellar. This launch highlights Interstellar’s growing global partnerships and commitment to expanding access to orbit.

These payloads are typical for a first launch. Three of these payloads are for educational institutions, while the remaining two are smallsat startups that have not launched yet, with one supported by the South Korean government. None have much money, so are willing to take the risk of a first launch.

As for when that first launch will take place, this is unclear. The company had previously targeted a launch in 2025, but based on the present status, this seems highly unlikely. The company itself was largely inactive from 2018 (when it did some suborbital test launches) until this year (when both Toyota and the Japanese government stepped in to provide financing). Expect it therefore to take time to get back into operation.

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Toyota extends its partnership with Japanese rocket startup Interstellar

9:39 am

In a deal last week Toyota extended its partnership with the Japanese rocket startup Interstellar Technologies from its earlier announcement in January 2025 that it would invest $44 million in the company.

As part of the new agreement, Toyota will dispatch personnel starting in August 2025 to support Interstellar in a wide range of manufacturing efforts, from the development of ZERO’s first flight unit to broader business commercialization. Additionally, Interstellar became the first startup to join “Toyota Woven City” as an Inventor, leveraging Toyota’s decades of manufacturing expertise and strengths. The development of ZERO will continue to be based on Interstellar’s facilities.

Zero is Interstellar’s proposed smallsat rocket. The company, which was founded in 2005, attempted a suborbital launch in 2018 that failed. Until Toyota’s commitments this year, it had done almost nothing since.

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Japanese private smallsat rocket company launch failure

9:46 am

Capitlism in space: Interstellar Technologies, a Japanese private smallsat rocket company, experienced on July 27 its third suborbital launch failure in four attempts.

The vehicle only reached an altitude of 13 kilometers following the launch at 4:20 p.m., falling into the sea some 9 kilometers (about 5.5. miles) offshore from Taiki, Hokkaido, its test site, Interstellar Technologies said. The rocket is the same model as Momo-3, measuring about 10 meters long, 50 centimeters in diameter and weighing 1 ton.

After failed attempts in 2017 and 2018, the startup finally found success with its third launch in May, with the rocket reaching an altitude of around 113 km before falling into the Pacific Ocean.

The failure occurred when an onboard computer detected something wrong and shut the engine down.

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Japanese private company launches rocket on suborbital test

8:44 am

Capitalism in space: The Japanese private company Interstellar Technologies yesterday successfully completed a suborbital test flight of its MOMO rocket.

This success is significant in that Interstellar has tried twice previously to complete a suborbital flight, and failed both times. The first attempt was on July 30, 2017 and the second on June 30, 2018. Furthermore, they had said that the gap between the second and third attempts would be shorter, which it was.

So far, MOMO is designed solely as a suborbital rocket. I would not be surprised if they begin to scale up development to an orbital version once they begin money-making operations with the suborbital version, but this has not been announced by the company.

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Interstellar Technologies releases video of launch failure

10:33 am

Capitalism in space: The private Japanese company Interstellar Technologies today released a video of its June 30th launch failure.

The company is investigating the exact cause of the June 30 failure, which saw the 33-foot (10-meter) tall MOMO-2 lift off from a test site near the town of Taiki on Japan’s island of Hokkaido before crashing to the ground seconds later after it lost thrust. “The cause of the MOMO-2 failure is still under investigation,” Takahiro Inagawa, IST’s CEO, told Astrowatch.net. “However, we assume that its engine and hot-gas thruster for the roll control are responsible.

They say they are proceeding toward their third launch attempt.

[A]lthough the exact date of the launch has not been disclosed, Inagawa said that MOMO-3’s flight should be expected within months. “We will begin the next launch as soon as we are ready,” Inagawa said. “We were able to launch MOMO-2 within less than a year after MOMO-1. The launch interval of MOMO-3 and MOMO-2 will be shorter.”

I have embedded the video of the launch failure below the fold. You do want to view this. Trust me.
» Read more

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Private Japanese smallsat rocket fails at launch

8:26 pm

Capitalism in space: The second test flight of a private Japanese smallsat rocket company, Interstellar Technologies, today failed immediately at launch.

A rocket developed by a Japanese startup company burst into flames seconds after a failed liftoff Saturday in northern Japan.

The MOMO-2 rocket, developed by Interstellar Technologies, was launched in Taiki town on Hokkaido, Japan’s northernmost main island. It was supposed to reach as high as 100 kilometers (62 miles) into space. Television footage showed that the 10-meter (33-foot) pencil rocket lifted only slightly from its launch pad before dropping to the ground, disappearing in a fireball. Footage on NHK public television showed a charred rocket lying on the ground.

The incident caused no injuries.

Rocket science is hard. Competition and freedom carries risks. This company might not be dead, but this failure is definitely a significant setback.

Posted from Belize.

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Japanese private rocket launch terminates early due of communication failure

9:14 am

Capitalism in space: The first launch of the first privately-built and funded Japanese suborbital rocket was terminated early today because of a communications failure.

The rocket’s developers, Interstellar Technologies, said they aborted the launch after about 80 seconds and it landed about 8 kilometers (5 miles) offshore. The aim had been to launch the rocket, called “Momo,” to an altitude of 100 kilometers (62 miles), but it only traveled about 30-40 kilometers (19-25 miles).

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