Still early days — Japan is studying a reusable rocket, but it wont fly before 2030 This launcher would replace the H3 rocket, which hasn’t yet become operational.
Stephen Clark – Oct 5, 2023 12:13 am UTC Enlarge / Japan’s first H3 rocket lifted off from the Tanegashima Space Center on a failed test flight in March.Photo by STR/JIJI Press/AFP via Getty Images reader comments 31 with
Japan debuted the new flagship H3 rocket in March, capping a decade-long, nearly $1.5 billion development effort to replace a launch vehicle that has been in service for more than 20 years. The H3’s upper stage failed to ignite a few minutes after liftoff, causing the rocket and its Earth observation payload to crash into the Pacific Ocean.
Officials in the Japanese government are already plotting the replacement for the H3 rocket, which had a goal of cutting in half the cost per launch of the H-2A launcher, a workhorse for Japan’s space program. But the H3 is based on a single-use, expendable design, like nearly all legacy rockets. The H3 design aims to achieve these cost savings through modernized manufacturing techniques and commonality in hardware with Japan’s smaller Epsilon rocket family.
The Japanese government updated its basic plan on space policy in June with language endorsing the development of a reusable rocket to follow the H3. Now, the Japan Aerospace Exploration Agency (JAXA) has tapped Mitsubishi Heavy Industries for joint studies on the next-generation launcher, which would have a recoverable and reusable first-stage booster, Space News reported this week.
There’s no design yet for this still-unnamed rocket. A JAXA spokesperson told Space News that engineers haven’t settled on a fuel. It could be cryogenic methane, the fuel favored by most companies developing new reusable launch rockets, or Japan could stick with liquid hydrogen, the super-cold fuel used on the H-2A and H3 rockets. Advertisement
The space policy document released by Japan’s Cabinet Office in June outlined several key technologies necessary for the country’s next-generation rocket. Those included rocket reuse tech, innovative materials, methane-fueled propulsion, and modernized production capabilities. Japanese policymakers wrote the new rocket, replacing the H3, would start flying in the 2030s.
“By reusing parts … we will improve launch frequency and transportation capacity, and reduce launch costs,” Japanese government officials wrote in the policy plan.
SpaceX’s demonstration of the benefits of reusable rockets has inspired others to pursue similar capabilities. Rocket Lab, the US-New Zealand company that operates the light-class Electron launcher for small satellites, has successfully recovered boosters and recently reused an engine from a previous flight. In the coming months, Rocket Lab plans to reuse an entire set of nine booster engines on a launch. The company is developing a new rocket named Neutron with a booster stage designed from the start to be entirely reusable.
Blue Origin and several other companies also may be a few years away from reusing boosters on their orbital-class rockets. United Launch Alliance’s new Vulcan rocket is powered by Blue Origin-built BE-4 engines. ULA plans to eventually recover the engines and reuse them but doesn’t plan to retrieve the entire first stage of the Vulcan rocket.
Other rocket builders, like Europe’s ArianeGroup, went all-in with a new expendable rocket, similar to Japan’s approach with the H3. Europe’s expendable Ariane 6 rocket won’t fly until next year, at the earliest. The European Space Agency and European industrial partners are in the early stages of designing a reusable methane-fueled engine that could lead, in the longer term, to a reusable replacement for the Ariane 6. But like Japan’s new reusable rocket study, a follow-on to the Ariane 6 would likely not fly until 2030 or later. Page: 1 2 Next → reader comments 31 with Stephen Clark Stephen Clark is a space reporter at Ars Technica, covering private space companies and the worlds space agencies. Stephen writes about the nexus of technology, science, policy, and business on and off the planet. Advertisement Channel Ars Technica ← Previous story Related Stories Today on Ars
CHARLOTTE, N.C. — A federal judge on Thursday rejected a request from 23XI Racing and Front Row Motorsports to continue racing with charters while they battle NASCAR in court, with the teams saying it puts them at risk of going out of business.
The ruling means the teams’ six cars will race as open entries this weekend at Dover, next week at Indianapolis and perhaps longer than that.
U.S. District Judge Kenneth Bell denied the teams’ bid for a temporary restraining order, saying they will make races over the next couple of weeks and they won’t lose their drivers or sponsors before his decision on a preliminary injunction.
Bell left open the possibility of reconsidering his decision if things change over the next two weeks.
After this weekend, the cars affected may need to qualify on speed if 41 entries are listed — a possibility now that starting spots have opened.
23XI, which is co-owned by retired NBA great Michael Jordan, and FRM filed their federal suit against NASCAR last year after they were the only two organizations out of 15 to reject NASCAR’s extension offer on charters.
The case has a Dec. 1 trial date, but the two teams are fighting to be recognized as chartered for the current season, which has 16 races left. A charter guarantees one of the 40 spots in the field each week, but also a base amount of money paid out each week.
Jordan and FRM owner Bob Jenkins won an injunction to recognize 23XI and FRM as chartered for the season, but the ruling was overturned on appeal earlier this month, sending the case back to Bell.
Three-time Daytona 500 winner Denny Hamlin co-owns 23XI with Jordan and said they were prepared to send Tyler Reddick, Bubba Wallace and Riley Herbst to the track each week as open teams. They sought the restraining order Monday, claiming that through discovery they learned NASCAR planned to immediately begin the process of selling the six charters which would put “plaintiffs in irreparable jeopardy of never getting their charters back and going out of business.”
“This is a fair and significant fear; however, NASCAR has agreed that it ‘will not sell any charters before the court can rule on plaintiffs’ motion for preliminary injunction,'” Ball wrote. “Similarly, plaintiffs worry that denying them guaranteed entry into the field for upcoming races could adversely impact their competitive standing, including their ability to earn a spot in the playoffs. Again, a legitimate, potentially irreparable harm. Yet, akin to the sale of charters, NASCAR represents to the court that all of plaintiffs’ cars will qualify (if they choose to race) for the races in Dover and Indianapolis that will take place during the next 14 days.”
Making the field won’t be an issue this weekend at Dover as fewer than the maximum 40 cars are entered. But should 41 cars show up anywhere this season, someone slow will be sent home and that means lost revenue and a lost chance to win points in the standings.
Reddick was last year’s regular season champion and raced for the Cup Series championship in the season finale. But none of the six drivers affected by the court ruling are locked into this year’s playoffs.
One child has died after a coach bringing children back from a school trip crashed and overturned near Minehead, Somerset, police have said.
A major incident was declared after the vehicle, which had 60-70 people on board, crashed on the A396 Cutcombe Hill, between Wheddon Cross and Timbercombe, shortly before 3pm on Thursday afternoon.
The coach was heading to Minehead Middle School at the time.
At a news conference on Thursday night, officials confirmed one child died at the scene.
A further 21 patients were taken to hospital, including two children who were transported via air ambulance. “Several” other people were treated at the scene, they added.
Image: A police officer near the scene of the coach crash in Somerset. Pic: PA
“This has been an incredibly challenging scene for all emergency services,” Chief Superintendent Mark Edgington said.
“Today’s events are truly tragic, we know the whole community and wider area will be utterly devastated to learn of this news.”
An investigation into what caused the crash will be carried out, he added.
Gavin Ellis, the chief fire officer for Devon and SomersetFire & Rescue Service, said the coach “overturned onto its roof and slid approximately 20ft down an embankment”.
He praised an off-duty firefighter who was travelling behind the vehicle for helping at the scene, before crews then arrived to carry out rescues “in extremely difficult circumstances”.
“I’m grateful for the tireless effort and actions of the crews in doing everything they could for those who were trapped and as quickly as safely as possible,” he said.
“I’m extremely proud of the efforts that my firefighters took today at this tragic event.”
Eight fire engines were sent to the scene, with two specialist rescue appliances and around 60 fire personnel, Mr Ellis said.
A total of 20 double-crewed ambulances, three air ambulances and two hazardous area response teams were also sent to the scene, a representative for the South Western Ambulance Service said.
Image: Pic: PA
Ch Supt Mark Edgington said: “Many passengers either sustained minor injuries or were physically unharmed and were transferred to a rest centre.
“Work to help them return to Minehead has been taking place throughout the evening.
“An investigation into the cause of this incident will be carried out.”
Minehead Middle School has pupils aged between nine and 14, and is five days away from the end of term.
‘I don’t have words,’ says local MP
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1:40
‘From one mother to another, I feel your pain’
Rachel Gilmour, MP for Tiverton and Minehead, has said the road where the coach crashed is “very difficult to manoeuvre”.
Speaking to Sky News chief presenter Anna Botting, Ms Gilmour said she visited Minehead Middle School recently, where she “met the children and they were full of joy, enthusiasm and were very positive”.
“I know many of their parents,” she said. “I don’t have words.”
Describing the scene, Gilmour continued: “You have a very difficult crossing at Wheddon Cross, and as you come out to dip down into Timbercombe, the road is really windy and there are very steep dips on either side.
“If the coach, as the police are saying, went 20ft off the road, you are literally on a really, really steep bank.”
The MP, whose constituency is partly in Devon and partly in Somerset, said there is a “really, really close community”.
“We will pull together, but it would be crass of me to say to a parent who’s just lost their child that I could make things better, I can’t,” she said.
“All I can say is that from one mother to another, I feel your pain.”
Image: Cutcombe Hill near Minehead, where the accident took place. Pic: Google Maps
Sir Keir Starmer said in a post on X: “There are no adequate words to acknowledge the death of a child. All my thoughts are with their parents, family and friends, and all those affected.
“Thank you to the emergency workers who are responding at pace – I’m being kept up to date on this situation.”
Education Secretary Bridget Phillipson wrote: “It is heartbreaking to hear that a child has died and others are seriously injured following the incident in Minehead earlier today.
“My thoughts are with their friends and families, and all those affected by this tragic event.”
Elon Musk’s health tech company Neuralink labeled itself a “small disadvantaged business” in a federal filing with the U.S. Small Business Administration, shortly before a financing round valued the company at $9 billion.
Neuralink is developing a brain-computer interface (BCI) system, with an initial aim to help people with severe paralysis regain some independence. BCI technology broadly can translate a person’s brain signals into commands that allow them to manipulate external technologies just by thinking.
Neuralink’s filing, dated April 24, would have reached the SBA at a time when Musk was leading the Trump administration’s Department of Government Efficiency. At DOGE, Musk worked to slash the size of federal agencies.
MuskWatch first reported on the details Neuralink’s April filing.
According to the SBA’s website, a designation of SDB means a company is at least 51% owned and controlled by one or more “disadvantaged” persons who must be “socially disadvantaged and economically disadvantaged.” An SDB designation can also help a business “gain preferential access to federal procurement opportunities,” the SBA website says.
Musk, the world’s wealthiest person, is CEO of Tesla and SpaceX, in addition to his other businesses like artificial intelligence startup xAI and tunneling venture The Boring Company. In 2022, Musk led the $44 billion purchase of Twitter, which he later named X before merging it with xAI.
Jared Birchall, a Neuralink executive, was listed as the contact person on the filing from April. Birchall, who also manages Musk’s money as head of his family office, didn’t immediately respond to a request for comment.
Neuralink, which incorporated in Nevada, closed a $650 million funding round in early June at a $9 billion valuation. ARK Invest, Peter Thiel’s Founders Fund, Sequoia Capital and Thrive Capital were among the investors. Neuralink said the fresh capital would help the company bring its technology to more patients and develop new devices that “deepen the connection between biological and artificial intelligence.”
Under Musk’s leadership at DOGE, the initiative took aim at government agencies that emphasized diversity, equity and inclusion (DEI). In February, for example, DOGE and Musk boasted of nixing hundreds of millions of dollars worth of funding for the Department of Education that would have gone towards DEI-related training grants.